Source: The Conversation (Au and NZ) – By Michelle Grattan, Professorial Fellow, University of Canberra

As it seeks to gain some momentum for its campaign, the Coalition on Monday will focus on law and order, announcing $355 million for a National Drug Enforcement and Organised Crime Strike Team to fight the illicit drug trade.

A Dutton government would put Australian Federal Police teams into the states and territories, which would be nationally led and supported by specialist financial investigative and prosecutorial teams.

This would bring an anticipated “significant increase in the seizure of criminal assets and proceeds of crime, which we will reinvest into communities,” Opposition Leader Peter Dutton and shadow ministers said in a statement.

“This means every dollar seized from drug dealers and criminal cartels will go towards helping the families and communities devastated by their crimes.”

In what it dubs a crackdown on crime from “the border to the backyard” the opposition has brought together its various initiatives in a $750 million “Operation Safer Communities” package. Apart from the taskforce, other measures have been previously announced.

The initiatives include:

• new laws to disrupt organised criminal syndicates

• upgrading border screening to intercept drugs and cracking down on the importation of date-rape drugs used in drink spiking

• extra funding for Crime Stoppers

• more money for the Australian Centre to Counter Child Exploitation, and piloting a national child sex offenders disclosure scheme that would provide more information to parents about the risks in their communities

• investment in e-safety education through the Alannah and Madeline Foundation

• introducing national “post and boast” laws making it illegal to post social media material glamorising involvement in crime

• working with other jurisdictions to standardise knife crime laws, and funding a national rollout of detector wands

• restoring the Safer Communities Fund to support local projects to improve social cohesion

• reintroducing fast track processes for visa appeals to deal with bad actors overstaying.

The Coalition is also promising stronger action against antisemitism and against corruption and crime in the construction industry.

Dutton said the community felt less safe than three years ago.

“I have the experience and determination to stand up to the outlaw motor cycle gangs and organised crime syndicates which are wreaking havoc on our streets and in our communities.”

Opposition defence spending announcement this week

The Coalition this week will release its long-awaited defence policy.

The Australian Financial Review is reporting it will be based on two stages. The first would be a target above Labor’s proposed spending over the forward estimates. A second stage would be a target of spending at least 2.5% of gross domestic product annually in the early 2030s.

Greens say public service should prepare a brief on their policies too

The major parties are always saying they don’t want to get ahead of themselves – being seen to assume the outcome before the election is decided. The Greens have no such inhibition.

Greens leader Adam Bandt has written to the Secretary of the
Prime Minister’s Department, Glyn Davis, declaring minority government looks probable.

“It is increasingly clear that whoever forms government will likely rely on crossbench support, and in turn need to be in a position to discuss in detail the policy proposals put forward by members of the crossbench,” he said in his letter, sent on Thursday.

So Bandt wants the public service to prepare a brief on Greens’ policies, to assist any such negotiations.

The context is that the bureaucracy prepares so-called “red” (Labor) and “blue” (Coalition) books, which contain briefs on the policies of each side. The appropriate book is ready for whoever wins.

Bandt wants a “green book” prepared. “This will enable an incoming government to discuss and begin to implement key policy priorities of the Australian Greens, should they agree to them during negotiations in relation to the formation of government.”

Bandt said as a “top priority” in this exercise, the public service should prepare in-depth work on reforming negative gearing and the capital gains tax discount. This should cover reducing these concessions for investors owning more than one property, which the Greens support.

Bandt referred the bureaucracy to work done by the Australia Institute, a progressive think tank, and to the views of various economic commentators who have advocated reform.

He also pointed to Treasury advice on the subject, over which debate flared last week, when Anthony Albanese claimed the government had not asked for modelling. Treasurer Jim Chalmers said he had asked for a “view ” from Treasury. The government says it has no plans to change negative gearing arrangements.

Albanese has repeatedly ruled out negotiating with the Greens if he was forced into minority government. But he wouldn’t need to – the Greens have said they would not have a bar of giving support to a Dutton minority government.

How important the Greens were when it came to particular pieces of legislation in a hung parliament would depend on the actual numbers. including how many crossbenchers a minority government needed to pass bills and how big the crossbench was. The bigger the crossbench, potentially the more choice of dancing partners for the government.

The importance of the lower house Greens if there was a minority government would also depend on how many of them there were. Bandt is safe in his seat of Melbourne, but the other three Greens, all from Queensland, won their seats in 2022 and these electorates are being strongly targeted by the major parties.

Michelle Grattan does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Election Diary: Coalition makes ‘law-and-order’ pitch, with plan to invest proceeds of drug crime into communities – https://theconversation.com/election-diary-coalition-makes-law-and-order-pitch-with-plan-to-invest-proceeds-of-drug-crime-into-communities-254588

Source: The Conversation (Au and NZ) – By Adrian Beaumont, Election Analyst (Psephologist) at The Conversation; and Honorary Associate, School of Mathematics and Statistics, The University of Melbourne

With less than two weeks to go now until the federal election, the polls continue to favour the government being returned.

Newspoll was steady at 52–48 to Labor, but primary vote changes indicated a gain for Labor as both leaders dropped on net approval. A Redbridge marginal seats poll had Labor gaining two points since the previous week for a 54.5–45.5 lead, a 3.5-point swing to Labor in those seats since the 2022 election.

A national Newspoll, conducted April 14–17 from a sample of 1,263, gave Labor a 52–48 lead, unchanged on the April 7–10 Newspoll. Primary votes were 35% Coalition (steady), 34% Labor (up one), 12% Greens (steady), 7% One Nation (down one) and 12% for all Others (steady).

In the last two Newspolls, Labor has been a little lucky to get a 52–48 lead as this would have been given by 2022 election preference flows, and Newspoll is making a pro-Coalition adjustment to One Nation preferences. This time the 2022 election flow method would give Labor about a 53–47 lead.

This Newspoll is the only new national poll since Friday’s update. The fieldwork dates were nearly the same as for the Freshwater poll that had Labor ahead by just 50.3–49.7 (April 14–16 for Freshwater). Other polls indicate that Freshwater is likely the outlier. Here’s the Labor two-party vote chart.

In-person early voting begins on Tuesday ahead of the May 3 election, so there isn’t much time for the Coalition to turn around their deficit, if the polls are accurate.

Anthony Albanese’s net approval in Newspoll was down five points to -9, with 52% dissatified and 43% satisfied. Peter Dutton’s net approval was down three points to -22, a record low for him. Albanese led Dutton as better PM by 52–36 (49–38 previously). This is Albanese’s biggest lead since May 2024.

Here’s the graph of Albanese’s net approval in Newspoll this term. The plus signs are data points and a smoothed line has been fitted.

Albanese and Labor were preferred to Dutton and the Coalition on helping with the cost of living by 31–28. Labor also led on dealing with uncertainty caused by Donald Trump (39–32), lowering taxes (33–26) and helping Australians buy their first home (29–24). The Coalition led on growing our economy by 34–29.

For so long, it had appeared that the cost of living issue would sink Labor at this election, so this result will please Labor.

Labor surges further ahead in Redbridge marginal seats poll

A poll of 20 marginal seats by Redbridge and Accent Research for the News Corp tabloids was conducted April 9–15 from a sample of 1,000. It gave Labor a 54.5–45.5 lead, a two-point gain for Labor since the April 4–9 marginal seats poll. Primary votes were 35% Labor (steady), 34% Coalition (down two), 14% Greens (up two) and 17% for all Others (steady).

The overall 2022 vote in these 20 seats was 51–49 to Labor, so this poll implies a 3.5-point swing to Labor from the 2022 election. If applied to the national 2022 result of 52.1–47.9 to Labor, Labor would lead by about 55.5–44.5. Since the first wave of this marginal seats tracker in early February, Labor has gained 6.5 points.

Albanese’s net favourability improved three points since last week to -5, while Dutton’s slumped six points to -22. By 36–26, voters thought Albanese and Labor had better election promises for them than Dutton and the Coalition.

By 56–13, voters agreed with Labor’s attack line that Dutton’s nuclear plan will cost $600 billion, and he will need to make cuts to pay for it. By 42–16, voters agreed with the Coalition’s attack line that this is the highest spending government in the past 40 years.

Additional Resolve questions and a right-wing poll of Wentworth

I previously covered the April 9–13 Resolve poll for Nine newspapers that gave Labor a 53.5–46.5 lead. Asked their biggest concerns about voting Labor, 47% said cost of living (down five since February), 36% economic management (down nine), 31% lack of progress in their first term (steady), 27% union ties (up two) and 24% Albanese’s personality (down six).

Asked their biggest concerns about voting for the Coalition, 45% said Dutton’s personality (up ten), 36% lack of policy detail (up eight), 34% that the Coalition would follow Donald Trump’s example (up six), 32% the performance of the Scott Morrison government (up four) and 31% their nuclear power plan (up five).

The February Resolve poll was the 55–45 to Coalition outlier, so responses in the prior survey were probably too Coalition-friendly.

The Poll Bludger reported Saturday that a seat poll of Wentworth, which teal Allegra Spender holds by a 55.9–44.1 margin over the Liberals after a redistribution, gave the Liberals a 47–28 primary vote lead over Spender with 15% for Labor and 10% for the Greens. This poll was taken by the right-wing pollster Compass.

Canadian election and UK local elections

I covered the April 28 Canadian election for The Poll Bludger on Saturday. The centre-left governing Liberals are down slightly since my previous Poll Bludger Canadian article on April 10, but are still likely to win a parliamentary majority. Debates between four party leaders occurred Wednesday (in French) and Thursday (in English), and we’re still waiting for post-debate polls.

United Kingdom local elections and a parliamentary byelection will occur on May 1. Current national polls imply that the far-right Reform will gain massively, with the Conservatives and Labour both slumping. Two seat polls give Reform a narrow lead over Labour for the parliamentary byelection in a safe Labour seat.

Adrian Beaumont does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Newspoll steady as both leaders’ ratings fall; Labor surging in poll of marginal seats – https://theconversation.com/newspoll-steady-as-both-leaders-ratings-fall-labor-surging-in-poll-of-marginal-seats-254715

Source: The Conversation (Au and NZ) – By Ian Whittaker, Senior Lecturer in Physics, Nottingham Trent University

What do you think of when it comes to extra terrestrial life? Most popular sci-fi books and TV shows suggest humanoid beings could live on other planets. But when astronomers are searching for extra-terrestrial life, it is usually in the form of emissions from bacteria or other tiny organisms.

A new research paper in the Astrophysical Journal suggests that Cambridge scientists have managed to find this type of emission with a certainty of 99.7% from a planet called K2-18b, 124 light years away. They used Nasa’s James Webb Space Telescope to analyse the chemical composition of the planet’s atmosphere and say they found promising evidence K2-18b could host life.

It’s an exciting breakthrough but it doesn’t confirm alien life.

Let’s look at why scientists largely do not accept the paper as proof of alien life.

Why it’s so hard to detect to alien life

Exoplanet hunting fell out of public interest quickly due to the staggering number of planets scientists are discovering. The first convincing exoplanet around a sun-like star was discovered in 1995 via radial velocity, where you don’t look at the planet but instead observe its effect on its nearest star. As the star wobbles back and forth it causes a tiny shift in the wavelength of the light it emits, which we can measure. We already know of roughly 7,500 planets.

Only 43 (to date) have been observed directly (about 0.5% of them). Most are discovered through indirect means, such as radial velocity or the transit method. The transit method is where you look at how the brightness of the star decreases as the planet passes in front of it. It will block a tiny amount of the light.

An exoplanet atmosphere

Looking at the atmosphere of an exoplanet is even more difficult. Scientists use spectroscopy to do this. The light coming out of the star can be observed directly and a small amount of it will also pass through the atmosphere of the planet. Researchers can estimate what an exoplanet’s atmosphere is made of by studying which light from the star is emitted or absorbed in the atmosphere.

Let’s try an analogy. You have a desk lamp at one end of a long table and you are standing at the other end, looking at the lamp. There is a glass of liquid in between you and the lamp. In very simple terms, the glass of liquid acting as the exoplanet and atmosphere, looks slightly blue, which allows you to identify it as water. In reality for scientists though, it’s more like the glass of water is a tiny glass bead which is rolling around while someone is messing around with a dimmer switch on the lamp. Then, freak weather results in a gentle mist forming on the table. The liquid is 99% pure water and 1% mineral water and the scientist is trying to see what minerals are in the water.

You can see that the expertise required to be perform this work is incredible. They observed molecules with a 99.7% confidence rate, which is a remarkable achievement.

The data from JWST and K2-18b

The key data in this study is in a graph fitting light absorption rates to which kind of molecules could be there and working out how abundant they are. It features in this short film about the discovery.

The graph produced by the study’s authors shows evidence for dimethyl sulphide and dimethyl disulphide (DMS).

Some scientists think of DMS as a biomarker – a molecular indicator of life on Earth. However DMS is not only produced by bacteria, but has also been found on comet 67P and in the gas and dust of the interstellar medium, the space between stars. It can even be generated by shining UV light onto a simulated atmosphere. The authors acknowledge this and claim the amount they determined was present cannot be produced by any of these conditions.

Similar to other claims of life?

Multiple studies have shown indicators for DMS and life in general on K2-18b and there are many other claims for other exoplanets.

The most recent is the idea that phosphine (another biomarker) was discovered in the Venusian atmosphere, so there must be bacteria in the clouds. This claim was quickly refuted by other researchers. Scientists pointed that a tiny error in the matching of data created results that showed a larger abundance of phosphine than was accurate. The Cambridge study is more rigorous and has more certainty in the result. But it is still not strong enough to convince the academic community, which needs 99.999% certainty.

The study authors suggest their findings indicate liquid oceans and a hydrogen atmosphere but others have countered it could be a gas giant, or a volcanic planet full of magma.

The Cambridge study is not proof of life, but it is an important step forward to characterising what other planets might be like and determining if we are alone or not. The study presented the best result yet and should inspire other scientists to take up the challenge.

Ian Whittaker does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Indicators of alien life may have been found – astrophysicist explains what the new research means – https://theconversation.com/indicators-of-alien-life-may-have-been-found-astrophysicist-explains-what-the-new-research-means-254843

Source: The Conversation (Au and NZ) – By Adrian Beaumont, Election Analyst (Psephologist) at The Conversation; and Honorary Associate, School of Mathematics and Statistics, The University of Melbourne

Labor increased its lead again in a YouGov poll, but Freshwater put the party ahead by just 50.3–49.7. This article also covers the final WA upper house results for the March 8 election.

A national YouGov poll, conducted April 11–15 from a sample of 1,506, gave Labor a 53–47 lead, a 0.5-point gain for Labor since the April 4–10 YouGov poll. It’s Labor’s biggest lead in YouGov for 18 months. Primary votes were 33% Labor (up one), 33% Coalition (down 0.5), 7% One Nation (down 1.5), 2% Trumpet of Patriots (up one), 9% independents (steady) and 3% others (steady).

Using 2022 election preference flows would give Labor about a 54.5–45.5 lead from these primary votes. YouGov is applying preference flows from its previous poll that was conducted from late February to late March.

However, recent polls that use respondent preferences suggest the gap in the Coalition’s favour between respondent and 2022 preference flows has dropped to nearly zero. This means YouGov’s current preference assumptions may be too pro-Coalition. Analyst Kevin Bonham has more on this.

In contrast to voting intentions, leaders’ ratings moved to Peter Dutton and against Anthony Albanese. Albanese’s net approval was down four points to -6, with 49% dissatisfied and 43% satisfied. Dutton’s net approval was up five points to -10. Albanese had a 48–38 better PM lead over Dutton (48–37 previously).

I’ve said before that changes in leaders’ ratings may indicate the next change in voting intentions in a poll, though this doesn’t always follow.

While YouGov shows Labor’s surge continuing, the Freshwater poll below only gave Labor a 50.3–49.7 lead. However, this was still a gain for Labor from the post-budget Freshwater poll. Freshwater has the Coalition primary vote at 39%, four points higher than in any other poll in the past week.

Here is the poll graph. I’m using the unrounded two-party numbers for Freshwater’s last two polls, improving Labor from a 51–49 deficit in the post-budget poll to a 50.6–49.4 deficit. There’s a big difference between this week’s Freshwater and all other national polls taken in the past week.

Freshwater poll has very narrow Labor lead

A national Freshwater poll for The Financial Review, conducted April 14–16 from a sample of 1,062, had a 50–50 tie by respondent preferences, a one-point gain for Labor since the Freshwater poll conducted after the March 25 budget. Before rounding, Labor led by 50.3–49.7.

Primary votes were unchanged at 39% Coalition, 32% Labor, 12% Greens and 17% for all Others. By 2022 election flows, this poll would give about a 50–50 tie.

Albanese’s net approval was up one point to -10, while Dutton’s was steady at -11. Albanese led as preferred PM by 46–41 (46–45 previously).

The Coalition’s lead over Labor on cost of living has been cut from a high of 14 points last October to two points in this poll. The Coalition held a 17-point lead on economic management last November, which has been reduced to six points. Cost of living remained the most important issue, with 73% citing it as a top issue.

Resolve poll on tax and housing policies

To gauge the popularity of Labor and the Coalition’s housing policy announcements at their April 13 campaign launches, a Resolve poll for Nine newspapers was conducted April 14–15 from a sample of 801. This poll didn’t report voting intentions, which were assessed in the April 9–13 Resolve poll.

By 40–34, voters preferred Labor’s tax policy to the Coalition’s, which were both announced the week of the March 25 budget. By 40–27, they preferred Labor’s housing policy.

JWS polls of Greens-held Brisbane seats

The Greens hold three seats in Brisbane: Ryan (by 52.6–47.4 vs the Liberal National Party), Brisbane (by 53.7–46.3) and Griffith (by 60.5–39.5). The Poll Bludger reported Thursday that JWS polls for Australian Energy Producers gave the LNP a 57–43 lead over Labor in Ryan with the Greens a distant third on primary votes.

In Brisbane, Labor led the LNP by 51–49 with the Greens once again a distant third. In Griffith, Labor led the LNP by 51–49, but the LNP led the Greens by 53–47.

Seat polls conducted by JWS Research have had very strong results for the Coalition. While the Greens could lose these seats to Labor, I believe the massive swings to the LNP shown here are unrealistic. I expect inner city seats to be good for left-wing parties relative to the national swing.

Redbridge poll: Labor close to majority

A national poll by Redbridge and Accent Research, using MRP methodology and reported by the News Corp tabloids, was conducted from February 3 to April 1 from a sample of 9,953. Labor was still polling poorly in February before they started to lift from early March.

The most likely outcome was 72 of the 150 House of Representatives seats for Labor, four short of a majority, 63 for the Coalition and 15 for all Others. The previous MRP poll by Redbridge and Accent Research in December had the most likely outcome as 71 Coalition seats to 65 for Labor.

Unemployment rate steady at 4.1%

The Australian Bureau of Statistics reported Thursday that the unemployment rate was 4.1% in March, unchanged from February, with over 32,000 jobs added. The employment population ratio (the percentage of eligible Australians that are employed) was steady at 64.1% after dropping from a near-record high of 64.4% in January.

WA upper house final result

The button was finally pressed on Wednesday to electronically distribute preferences for the upper house for the March 8 Western Australian state election. The upper house used a reformed system with 37 members elected statewide by proportional representation with preferences. A quota was just 1/38 or 2.63%.

Labor won 16 of the 37 seats (down six on 2021 when they won their first WA upper house majority on a massive landslide), the Liberals won ten seats (up three), the Nationals two (down one), the Greens four (up three), One Nation two (up two), Legalise Cannabis one (down one), Australian Christians one (up one) and Animal Justice one (up one). Overall, left-wing parties won the upper house by 22–15 over right-wing parties.

Final primary votes gave Labor 15.54 quotas, the Liberals 10.3, the Nationals 2.1, the Greens 4.2, One Nation 1.45, Legalise Cannabis 1.1, Australian Christians 1.0, an independent group 0.51 and Animal Justice 0.46.

After distribution of preferences, One Nation’s second candidate had 0.83 quotas Labor’s 16th candidate 0.70 quotas, Animal Justice’s top candidate 0.66 quotas and Sophia Moermond, the independent group’s top candidate, 0.63 quotas. Owing to exhaustion, the top three were elected to the last three seats short of a quota.

Adrian Beaumont does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Labor’s poll surge continues in YouGov, but it’s barely ahead in Freshwater – https://theconversation.com/labors-poll-surge-continues-in-yougov-but-its-barely-ahead-in-freshwater-254708

Source: The Conversation (Au and NZ) – By Adrian Beaumont, Election Analyst (Psephologist) at The Conversation; and Honorary Associate, School of Mathematics and Statistics, The University of Melbourne

Labor increased their lead again in a YouGov poll, but Freshwater put them ahead by just 50.3–49.7. This article also covers the final WA upper house results for the March 8 election.

A national YouGov poll, conducted April 11–15 from a sample of 1,506, gave Labor a 53–47 lead, a 0.5-point gain for Labor since the April 4–10 YouGov poll. It’s Labor’s biggest lead in YouGov for 18 months. Primary votes were 33% Labor (up one), 33% Coalition (down 0.5), 7% One Nation (down 1.5), 2% Trumpet of Patriots (up one), 9% independents (steady) and 3% others (steady).

Using 2022 election preference flows would give Labor about a 54.5–45.5 lead from these primary votes. YouGov is applying preference flows from its previous poll that was conducted from late February to late March.

However, recent polls that use respondent preferences suggest the gap in the Coalition’s favour between respondent and 2022 preference flows has dropped to nearly zero. This means YouGov’s current preference assumptions may be too pro-Coalition. Analyst Kevin Bonham has more on this.

In contrast to voting intentions, leaders’ ratings moved to Peter Dutton and against Anthony Albanese. Albanese’s net approval was down four points to -6, with 49% dissatisfied and 43% satisfied. Dutton’s net approval was up five points to -10. Albanese had a 48–38 better PM lead over Dutton (48–37 previously).

I’ve said before that changes in leaders’ ratings may indicate the next change in voting intentions in a poll, though this doesn’t always follow.

While YouGov shows Labor’s surge continuing, the Freshwater poll below only gave Labor a 50.3–49.7 lead. However, this was still a gain for Labor from the post-budget Freshwater poll. Freshwater has the Coalition primary vote at 39%, four points higher than in any other poll in the past week.

Here is the poll graph. I’m using the unrounded two-party numbers for Freshwater’s last two polls, improving Labor from a 51–49 deficit in the post-budget poll to a 50.6–49.4 deficit. There’s a big difference between this week’s Freshwater and all other national polls taken in the past week.

Freshwater poll has very narrow Labor lead

A national Freshwater poll for The Financial Review, conducted April 14–16 from a sample of 1,062, had a 50–50 tie by respondent preferences, a one-point gain for Labor since the Freshwater poll conducted after the March 25 budget. Before rounding, Labor led by 50.3–49.7.

Primary votes were unchanged at 39% Coalition, 32% Labor, 12% Greens and 17% for all Others. By 2022 election flows, this poll would give about a 50–50 tie.

Albanese’s net approval was up one point to -10, while Dutton’s was steady at -11. Albanese led as preferred PM by 46–41 (46–45 previously).

The Coalition’s lead over Labor on cost of living has been cut from a high of 14 points last October to two points in this poll. The Coalition held a 17-point lead on economic management last November, which has been reduced to six points. Cost of living remained the most important issue, with 73% citing it as a top issue.

Resolve poll on tax and housing policies

To gauge the popularity of Labor and the Coalition’s housing policy announcements at their April 13 campaign launches, a Resolve poll for Nine newspapers was conducted April 14–15 from a sample of 801. This poll didn’t report voting intentions, which were assessed in the April 9–13 Resolve poll.

By 40–34, voters preferred Labor’s tax policy to the Coalition’s, which were both announced the week of the March 25 budget. By 40–27, they preferred Labor’s housing policy.

JWS polls of Greens-held Brisbane seats

The Greens hold three seats in Brisbane: Ryan (by 52.6–47.4 vs the Liberal National Party), Brisbane (by 53.7–46.3) and Griffith (by 60.5–39.5). The Poll Bludger reported Thursday that JWS polls for Australian Energy Producers gave the LNP a 57–43 lead over Labor in Ryan with the Greens a distant third on primary votes.

In Brisbane, Labor led the LNP by 51–49 with the Greens once again a distant third. In Griffith, Labor led the LNP by 51–49, but the LNP led the Greens by 53–47.

Seat polls conducted by JWS Research have had very strong results for the Coalition. While the Greens could lose these seats to Labor, I believe the massive swings to the LNP shown here are unrealistic. I expect inner city seats to be good for left-wing parties relative to the national swing.

Redbridge poll: Labor close to majority

A national poll by Redbridge and Accent Research, using MRP methodology and reported by the News Corp tabloids, was conducted from February 3 to April 1 from a sample of 9,953. Labor was still polling poorly in February before they started to lift from early March.

The most likely outcome was 72 of the 150 House of Representatives seats for Labor, four short of a majority, 63 for the Coalition and 15 for all Others. The previous MRP poll by Redbridge and Accent Research in December had the most likely outcome as 71 Coalition seats to 65 for Labor.

Unemployment rate steady at 4.1%

The Australian Bureau of Statistics reported Thursday that the unemployment rate was 4.1% in March, unchanged from February, with over 32,000 jobs added. The employment population ratio (the percentage of eligible Australians that are employed) was steady at 64.1% after dropping from a near-record high of 64.4% in January.

WA upper house final result

The button was finally pressed on Wednesday to electronically distribute preferences for the upper house for the March 8 Western Australian state election. The upper house used a reformed system with 37 members elected statewide by proportional representation with preferences. A quota was just 1/38 or 2.63%.

Labor won 16 of the 37 seats (down six on 2021 when they won their first WA upper house majority on a massive landslide), the Liberals won ten seats (up three), the Nationals two (down one), the Greens four (up three), One Nation two (up two), Legalise Cannabis one (down one), Australian Christians one (up one) and Animal Justice one (up one). Overall, left-wing parties won the upper house by 22–15 over right-wing parties.

Final primary votes gave Labor 15.54 quotas, the Liberals 10.3, the Nationals 2.1, the Greens 4.2, One Nation 1.45, Legalise Cannabis 1.1, Australian Christians 1.0, an independent group 0.51 and Animal Justice 0.46.

After distribution of preferences, One Nation’s second candidate had 0.83 quotas Labor’s 16th candidate 0.70 quotas, Animal Justice’s top candidate 0.66 quotas and Sophia Moermond, the independent group’s top candidate, 0.63 quotas. Owing to exhaustion, the top three were elected to the last three seats short of a quota.

Adrian Beaumont does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Labor’s poll surge continues in YouGov, but they’re barely ahead in Freshwater – https://theconversation.com/labors-poll-surge-continues-in-yougov-but-theyre-barely-ahead-in-freshwater-254708

Source: The Conversation (Au and NZ) – By Gode Bola, Lecturer in Hydrology, University of Kinshasa

The April 2025 flooding disaster in Kinshasa, the capital of the Democratic Republic of Congo, wasn’t just about intense rainfall. It was a symptom of recent land use change which has occurred rapidly in the city, turning it into a sprawling urban settlement without the necessary drainage infrastructure.

Local rains combined with runoff from torrential rains coming from neighbouring Congo Central Province quickly overwhelmed the city’s small urban tributaries. The Ndjili River and its tributary (Lukaya), which run through the city, overflowed and flooded homes on either side.

This led to the deaths of at least 70 people, 150 injured and the temporary displacement of more than 21,000 people. Floods affected the running of 73 healthcare facilities. Access to water and transport services were disrupted in large parts of the city. People could only move around by dugout canoe or by swimming in flooded avenues.

Floods have become recurrent in the DRC. The last quarter of 2023 and the beginning of 2024 saw the most devastating floods there and in neighbouring countries since the 1960s.

According to UN World Urbanisation Prospects (2025), the reason the floods have become this devastating is the growth of Kinshasa. The city is the most densely populated city in the DRC, the most populous city and third-largest metropolitan area in Africa.

Kinshasa’s 2025 population is estimated at 17,778,500. Back in 1950, it was 201,905. In the past year alone, the city’s population has grown by 746,200, a 4.38% annual change. At least 2% of the population live in areas prone to flooding. Urban infrastructure, especially flood-related, is non-existent or inadequate. Where it exists, drainage systems are blocked by solid waste, itself another sign of the city whose public services such as waste collection have become dysfunctional.

We have been studying the characteristics of flooding and the prediction of risk linked to it in the Congo Basin for five years as part of our work at the Congo Basin Water Resources Research Center in Kinshasa. We study the movement of water in natural and modified environments and its interactions with infrastructure over a range of geographical scales. We argue in this article that understanding why Kinshasa floods means recognising two very different water systems at play – and how urban growth has made the city more vulnerable to both.

Kinshasa faces two distinct flood hazards: first, flooding from the Congo River, which typically peaks around December and January; and, second, urban flood events driven by local rainfall and runoff from the hills south of the city around April and December.

Most of Kinshasa’s flood disasters have come from the second type. And as Kinshasa has urbanised, expanding into the floodplains, but without the necessary urban infrastructure, the impact of urban flood events has become worse.

With more sealed surfaces – because of more urban settlements – and less natural water absorption, more rainwater runs off, and faster. This overwhelms the city’s small urban tributaries and the Ndjili river.

Growth of Kinshasa and flood

As the city has expanded, so has its flood exposure. The city’s tributaries drain steep, densely populated urban slopes and are highly responsive to rainfall.

Of Kinshasa’s two flood risks, the impact of Congo River flooding can be observed in large cities located along major rivers, and typically peaks around January. These are seasonal floods driven by rainfall across the whole Congo Basin.

Research at Congo Basin Water Resources Research Center shows that while Congo River high water levels can cause “backwater effects” – the upstream rise in water level caused by reduced flow downstream – most damaging floods result from intense local rainfall overwhelming the city’s small river catchments. The flood risk analysis indicates that 38 territories are the hotspot of flooding in the Congo basin. Kinshasa is a hotspot due to its double risk sources and extensive urbanisation.

Read more:
Kenya’s devastating floods expose decades of poor urban planning and bad land management

The urban flood events are more challenging. They can happen with less rainfall and cause major destruction. They are driven by local rainfall and rapid growth of informal settlements.

Other cities face similar risks. In 2024, Nairobi suffered deadly floods after prolonged rain overwhelmed informal neighbourhoods and infrastructure.

Across Africa, cities are growing faster than their infrastructure can keep up with. Kinshasa has unique exposure, but also strong local research capacity.

The Congo River’s seasonal peaks are relatively well understood and monitored. But urban tributaries are harder to predict.

DRC’s meteorological agency Mettelsat and its partners are building capacity for real-time monitoring. But the April 2025 floods showed that community-level warning systems did not work.

Climate change is expected to intensify extreme rainfall in central Africa. While annual totals may not increase, short, intense storms could become more frequent.

This increases pressure on cities already struggling with today’s rains. In Kinshasa, the case for climate-resilient planning and infrastructure is urgent.

Read more:
Local knowledge adds value to mapping flood risk in South Africa’s informal settlements

What needs to change?

Forecasting rainfall is not enough. Government agencies in collaboration with universities must also forecast flood impact – and ensure people can act on the warnings. There is a need to put in place systems to achieve this under a catchment integrated flood management plan.

The main elements of such a plan include:

• Improved early warning systems: Use advanced technologies (such as satellites) to gather real-time data on environmental conditions.

• Upgraded drainage infrastructure: Identify weaknesses and areas prone to flooding, to manage storm water better.

• Enforcement of land use planning: Establish clear regulations that define flood-prone areas; outline permissible land uses.

• Define safety perimeters around areas at risk of flooding: Use historical data, flood maps, and hydrological studies to pinpoint areas that are at risk. Regulate development and activities there.

• Local engagement in flood preparedness: Educate residents about flood risks, preparedness measures, and emergency response.

Read more:
Nigeria and Ghana are prone to devastating floods – they could achieve a lot by working together

Institutions such as the Congo Basin Water Resources Research Center play a critical role, not just in research but in turning knowledge into action. Rainfall may trigger the flood, but urban systems decide whether it becomes a disaster. And those systems can change.

Gode Bola receives funding support from the Congo River User Hydraulics and Morphology (CRuHM) project (2016-2021), which was entirely funded by The Royal Society-DFID Africa Capacity Building (RS-DFID) under grant number “AQ150005.” He is affiliated with the Regional School of Water (ERE) and the Congo Basin Water Research Center (CRREBaC) of the University of Kinshasa, as well as the Regional Center for Nuclear Studies of Kinshasa.

Mark Trigg received funding support from the Congo River user Hydraulics and Morphology (CRuHM) project (2016-2021), which was wholly funded by The Royal Society-DFID Africa Capacity Building (RS-DFID) under the grant number “AQ150005”. Mark Trigg is affiliated with water@leeds at the University of Leeds and the Global Flood Partnership.

Raphaël Tshimanga receives funding from he Congo River user Hydraulics and Morphology (CRuHM) project (2016-2021), which was wholly funded by The Royal Society-DFID Africa Capacity Building (RS-DFID) under the grant number “AQ150005”. He is affiliated with the Congo Basin Water Resources Research Center and the Regional School of Water of the University of Kinshasa.

– ref. Why Kinshasa keeps flooding – and why it’s not just about the rain – https://theconversation.com/why-kinshasa-keeps-flooding-and-why-its-not-just-about-the-rain-254411

Source: The Conversation (Au and NZ) – By Michelle Grattan, Professorial Fellow, University of Canberra

Peter Dutton, now seriously on the back foot, has made an extraordinarily big “aspirational” commitment at the back end of this campaign.

He says he wants to see a move to indexing personal income tax – an assault on the “bracket creep” that sees people pushed into higher tax brackets when their income rises due to inflation.

He suggests this would be a task for after a Coalition government had the budget back in shape, so he puts no timing on it.

If Dutton is serious, this is the most radical proposal we’ve heard for the election, apart from the nuclear policy.

The opposition leader produced the indexation idea, out of the blue, in an interview with The Australian, saying, “I want to see us move as quickly as we can as a country to changes around personal income tax, including indexation, because bracket creep, as we know, is a killer in the economy”.

When there are widespread calls from business and experts for an overhaul of the taxation system, but apparent deafness from most politicians, dealing with bracket creep would be one major step forward.

Economist Richard Holden from the University of New South Wales, is a strong advocate. “The current system has been built on tax increases on every working Australian all the time,” he says. An indexed system would be “more honest”, as well as forcing fiscal discipline on governments.

The latter constraint is one big reason governments shy away from it. Bracket creep provides a huge amount of revenue automatically, and indexing tax brackets would be very costly. The spending discipline the system would then require is probably beyond any modern government, given the enormous demands from voters.

There’s another point. Governments like to make good fellows of themselves by handing back some of this bracket creep in tax cuts at times of their choosing, particularly at elections – as we’ve seen this time.

Ken Henry, former treasury secretary and lead author of the major taxation review commissioned by the Rudd government, urged indexation in a February speech outlining a blueprint for tax change.

Henry is particularly concerned with intergenerational equity. “Young workers are being robbed by a tax system that relies increasingly upon fiscal drag,” he said. “Fiscal drag forces them to pay higher and higher average tax rates, even if their real incomes are falling.”

A conservative government did index income tax, way back in Malcolm Fraser’s day, when the then-prime minister described it as a “great taxation reform”.

Fraser argued: “Perhaps the single most important feature of the reform, is that it is not a once-and-for-all measure. It will continue to have significant beneficial effects in personal income tax payments from year to year”.

The change, however, didn’t last long – after introducing it in 1976, Fraser cut it back in 1979 and then scrapped it in 1982.

But, accepting the potential upsides of the idea, the fact that Dutton has come out with this ambitious, “aspirational” policy in this way, at this time, raises questions about his campaign strategy.

If he means it, this should have been front and centre of his election pitch, advanced much earlier and cast as part of a reform agenda.

Instead, all we got from the Liberals on tax was the weekend commitment to a one-off income tax offset. And that followed the party earlier saying it would not be able, for financial reasons, to produce anything at all. Also, of course, they rejected the modest tax cuts in the budget.

Some Liberal sources say Dutton always intended to float the indexation idea. If so, he and those running the Liberals’ campaign missed a big opportunity.

The other view is to think Dutton could have been freelancing – talking up his commitment to economic reform, going for an easy headline, but knowing he would never have to deliver. Most likely, he would not reach office. If he did win government – well, this was an “aspiration”, whose time would never arrive.

Questioned on Thursday about his idea, Dutton argued the difficulty of writing tax policies from opposition.

He pointed to the example of the Howard government, which unveiled the GST after winning power in 1996, then took it to a subsequent election in 1998.

It is a risky precedent to highlight, however. John Howard promised in opposition he would “never, ever” bring in a GST. Dutton can’t afford to fan any suggestion that we don’t really know his full tax agenda – that he might surprise if he won.

For its part, Labor this week found itself again caught in the weeds of a perennial tax debate – over whether, despite its denials, it might abolish the negative gearing tax break for property investors.

Anthony Albanese kicked an own goal in Wednesday’s debate when he insisted the government hadn’t commissioned Treasury modelling on the impact of negative gearing for the housing market. There was much to-ing and fro-ing last year about this, but it finally became clear Treasurer Jim Chalmers had requested advice.

Chalmers on Thursday made a Jesuitical distinction between asking Treasury for “a view” and commissioning modelling.

“I said last year […] I sought a view. That’s different to commissioning modelling,” Chalmers told a news conference alongside Albanese. “The prime minister was asked about commissioning modelling. I sought a view.

“The view from the Treasury is that a change to negative gearing wouldn’t get the sort of improvement that we desperately need to see in our economy when it comes to supply and that’s why our focus is not on changing that.”

Pressed to “rule out” any changes to negative gearing, Chalmers said “we’re not proposing any changes in this area”.

Dutton claimed Chalmers was “an advocate for the abolition of negative gearing”, and was “at war” with Albanese.

Once again, the opposition is trying to sow doubt about what Labor might do, regardless of what it might say, on this thorny issue. Or, as the government claims, it is trying to distract from its own problems.

Michelle Grattan does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Grattan on Friday: Peter Dutton’s tax indexation ‘aspiration’ has merit – so why didn’t we hear about it before? – https://theconversation.com/grattan-on-friday-peter-duttons-tax-indexation-aspiration-has-merit-so-why-didnt-we-hear-about-it-before-254589

Source: The Conversation (Au and NZ) – By Tessa Charles, Accelerator Physicist, Monash University

The Large Hadron Collider has been responsible for astounding advances in physics: the discovery of the elusive, long-sought Higgs boson as well as other new exotic particles, possible hints of new forces of nature, and more.

Located at the European Organization for Nuclear Research (CERN) on the border of France and Switzerland, the LHC is expected to run for another 15 years. Nevertheless, physicists are already planning what will come after it.

One of the most favoured proposals for CERN’s next step is the 70-year Future Circular Collider (FCC) project. More than three times the size of the LHC, this enormous proposed machine promises to resolve some mysteries of the universe – and undoubtedly reveal some new ones.

What will the Future Circular Collider do?

The LHC, which occupies a circular tunnel 27 kilometres in circumference, is currently the largest machine in the world. The FCC would be housed in a much larger 91km tunnel in the Geneva basin between the Jura mountains and the Alps.

The first stage of the FCC would be the construction and operation of a collider for electrons (the lightweight particles that make up the outer shell of atoms) and positrons (the antimatter mirror images of electrons). This collider would allow more precise measurements of the Higgs boson.

The second stage would be a collider for protons (heavier particles found in the cores of atoms). The LHC already collides protons, but the new collider would accelerate the protons up to more than seven times as much energy.

This increase in collision energy allows for the discovery of particles never produced by humanity before. It also brings with it technical challenges, such as the development of high-powered superconducting magnets.

Known unknowns

The most high-profile result from the LHC has been the discovery of the Higgs boson, which lets us explain why particles in the universe have mass: they interact with the so-called Higgs field which permeates all of space.

This was a great victory for what we call the Standard Model. This is the theory that, to the best of our current knowledge, explains all the fundamental particles in the universe and their interactions.

However, the Standard Model has significant weaknesses, and leaves some crucial questions unanswered.

The FCC promises to answer some of these questions.

For example, we know the Higgs field can explain the mass of heavy particles. However, it is possible that a completely different mechanism provides mass to lighter particles.

We also want to know whether the Higgs field gives mass to the Higgs boson itself. To answer these Higgs questions we will need the higher energies that the FCC will provide.

The FCC will also let us take a closer look at the interactions of very heavy quarks. (Quarks are the tiniest components of protons and some other particles.) We hope this may shed light on the question of why the universe contains so much more matter than antimatter.

And the FCC will help us look for new particles that might be dark matter, a mysterious substance that seems to pervade the universe.

Of course, there is no guarantee that the FCC will provide the answers to these questions. That is the nature of curiosity-driven research. You know the journey, but not the destination.

Competing colliders

The FCC is not the only major particle physics project under consideration.

Another is a proposed 20-kilometre machine called the International Linear Collider, which would likely be built in Japan.

The US has several projects on the go, mainly detectors of various kinds. It also supports an “offshore Higgs factory”, located in Europe or Japan.

One project that may concern the FCC’s backers is the planned 100 kilometre Chinese Electron Positron Collider (CEPC), which has significant similarities to the FCC.

This poses a dilemma for Europe: if China goes ahead with their project, is the FCC still worthwhile? On the other hand, CERN chief Fabiola Gianotti has argued that the FCC is necessary to keep up with China.

High costs

The decision on the FCC won’t be taken lightly, given the large cost associated with the project.

CERN estimates the first stage will cost 15 billion Swiss francs (around US$18 billion or A$28 billion at current exchange rates), spread out over 12 years. One third of this cost is the tunnel construction.

The size of the sum has attracted criticism. However, a CERN spokesperson told the Agence France-Press that up to 80% of the cost would be covered by the organisation’s current annual budget.

The second stage of FCC, which would reuse the 91km tunnel as well as some existing LHC infrastructure, is currently estimated to cost 19 billion Swiss francs. This costing carries a large uncertainty, as the second stage would not be commissioned until 2070 at the earliest.

Benefits beyond science

Pure science has not been the only benefit of the LHC. There have been plenty of practical technological spinoffs, from medical technology to open and free software.

One specific example is the Medipix chips developed for a detector at the LHC, which are now used across multiple areas in medical imaging and material science.

For the past 70 years, CERN has served as a fantastic model for peaceful and efficient international collaboration. Beyond its astonishing scientific output, it has also produced significant advances in engineering that have spread through society. Building the FCC will be an investment in both technology and curiosity.

Tessa Charles has previously received funding through an EU Horizon 2020 project, the FCC Innovation Study (FCCIS).

Ulrik Egede receives funding from the Australian Research Council to carry out research at the Large Hadron Collider. He is representing southeast Asia and Australia/NZ on the International Committee of Future Accelerators.

– ref. Why do scientists want to spend billions on a 70-year project in an enormous tunnel under the Swiss Alps? – https://theconversation.com/why-do-scientists-want-to-spend-billions-on-a-70-year-project-in-an-enormous-tunnel-under-the-swiss-alps-254577

Source: The Conversation (Au and NZ) – By Jennifer McKay, Professor in Business Law, University of South Australia

Could someone take you to court over an agreement you made – or at least appeared to make – by sending a “👍”?

Emojis can have more legal weight than many people realise. A search of the Australasian Legal Information Institute database reveals emojis have been part of evidence in at least 240 cases in the past few years.

Their use in texts and emails has been considered in unfair dismissals, wills, family law and criminal cases.

Australian law does not explicitly address the use of emojis in contracts. And although emojis have been accepted in evidence, the context in which they are used is always a crucial part of the picture.

Here’s what you need to know about what makes a contract under the law – and why you might want to be especially cautious with the “🤝” button.

Is it a casual agreement or a contract?

Contracts don’t have to be printed on paper and signed in a lawyer’s office.

In Australia, a contract is generally considered legally binding if it meets certain requirements. There has to be:

• an intention to create legal relations
• a clear unequivocal offer
• certainty and completeness of terms
• “consideration” – the price exchanged for the promise made
• clearly communicated acceptance
• no “vitiating factors” – things that could spoil the contract such as unconscionable conduct or duress.

Indeed, case law supports the notion that contracts can be partly oral and partly written. But the oral terms cannot contradict the terms of the written agreement.

Contracts can also incorporate graphics. The former chief justice of the High Court of Australia, Robert French AC, said in December 2017:

There is no reason in principle why pictorial contracts explained orally or supplemented textually or contextually could not be enforceable in the same way as any other contract.

‘I hereby accept’

In contract cases, courts often use what’s called an objective test to consider whether a reasonable person would conclude the parties intended to create a binding contract.

In Australian law, parties to a contract must clearly communicate that they accept its terms.

Social and domestic agreements are presumed not to create legal intent, unless proven otherwise. But with extensive use of texts and emails with emojis now, there is less clarity about what is a social and domestic agreement.

Commercial and business contracts are presumed to have contractual intent. However, even in business contracts, emojis may be deemed to amount to acceptance, depending on the past behaviour of the parties.

That’s because many emojis are ambiguous.

In one situation, a thumbs up (👍) might mean “I have something”, but in another it could mean “I agree to it”. A smiley face is the same so context is crucial. The least ambiguous is arguably the handshake emoji – 🤝.

The experience overseas

A number of cases from overseas show how emojis sent in response to an offer can lead to unintended contracting.

They can induce what the law calls “reasonable reliance” of one party on the other, more than “bare hope” an agreement can be relied upon. This can subject the sender to liability if that reliance is misplaced.

One 2023 case in Canada centred on a thumbs-up emoji sent in response to a proposal for the purchase of flax.

Here, the court ruled that the emoji did signify agreement to the terms, similar to a written signature. It had been habitually used between the buyer and seller in a longstanding business relationship.

Because of this repeated use, the court ruled, a reasonable bystander would conclude the emoji response created a binding agreement.

Borrowing a big boat

A subsequent case, in the United Kingdom, centred on an alleged four-year “charterparty” agreement to hire a large crude oil tanker called the “Aquafreedom” between Southeaster, its owners and the logistics company Trafigura.

Trafigura claimed a binding agreement to charter the ship had been reached, following a period of offers and counteroffers. But the vessel’s owner Southeaster disagreed. Trafigura claimed it had suffered about US$15 million in lost business as a result.

The evidence in this case was principally a bundle of written communications between the parties, including email, telephone and WhatsApp communications.

While the court ultimately ruled no contract had been entered into, it found that more informal communications used in evidence, including WhatsApp messages containing emojis, shouldn’t be given less weight than email communications.

What can you do?

Here are some helpful hints for navigating the use of emojis, especially when buying or selling anything, running your own business or sending messages at work:

• be careful when discussing services or purchase of goods over text
• when acknowledging receipt of a contract, it’s safest to clearly state that you will review the terms and get back to the sender
• do not use an emoji on its own
• do not use the handshake emoji
• keep business-like arrangements on a more formal footing.

Remember, context remains important and past behaviour is critical.

The author would like to acknowledge the contribution of Mark Giancaspro, senior lecturer in law at the University of Adelaide, for assistance in the preparation of this article.

Jennifer McKay receives research funding from CRC Race 2030.

– ref. Could you accidentally sign a contract by texting an emoji? Here’s what the law says – https://theconversation.com/could-you-accidentally-sign-a-contract-by-texting-an-emoji-heres-what-the-law-says-252287

Source: The Conversation (Au and NZ) – By Trang Nguyen, Postdoctoral Research Fellow, Centre for Global Food and Resources, University of Adelaide

Australians waste around 7.68 million tonnes of food a year. This costs the economy an estimated A$36.6 billion and households up to $2,500 annually.

Much of this food is wasted at home. So while consumers are increasingly aware of sustainability issues, awareness does not always translate into better food management in practice.

Our previous research revealed people differ in the ways they generate and dispose of food waste.

Our latest study takes a closer look at two groups who care deeply about food, for different reasons. It exposes a paradox: people who prioritise healthy eating waste less food, while those focused on sustainability do not necessarily follow through with waste reduction.

This suggests encouraging healthier eating habits might be a better way to cut household food waste than sustainability messaging alone.

Sustainability awareness doesn’t always mean less waste

To understand how food values influence waste, we surveyed 1,030 Australian consumers living in Adelaide between April and May 2021. We set quotas for age, sex and household income to match national demographics.

We wanted to find out who wasted more food: nutrition-conscious or sustainability-conscious consumers?

We asked each person how they plan meals and shop, what they value when buying food, and how much food they throw away each week.

Our results show nutrition-conscious consumers tend to plan meals in advance, use shopping lists and avoid over-purchasing. These behaviours contribute to both a healthier diet and less food waste.

We found consumers who make more nutrition-conscious food choices tended to waste less edible food. A one-point increase on our nutrition scale corresponded to a 17.6% reduction in food waste, compared to people with lower scores on the nutrition scale.

On the other hand, those who prioritise sustainability over nutrition did not show any significant reduction in edible food waste.

These consumers tend to choose environmentally friendly products. They typically prefer to shop locally, buy organic produce and avoid excessive food packaging. But that does not necessarily translate into waste-reducing behaviours.

Those concerned with sustainability tend to buy more food than they need. They have good intentions, but lack strategies to manage and consume the food efficiently. Unfortunately this means sustainably sourced food often ends up in landfill.

Integrating nutrition and food waste messaging

Our research reveals a disconnect between purchasing choices and what actually happens to the food at home.

This highlights an opportunity for policymakers and campaigns aimed at reducing food waste. Rather than focusing solely on sustainability, including messages about improving nutrition can boost health and reduce food waste at the same time.

Some successful interventions already demonstrate the potential of this approach. For example, an Australian school-based program found children involved in preparing their own meals wasted less food than they did before the program began.

These students learned about food waste and healthy eating, participated in workshops on meal preparation and composting, and helped pack their own lunches – with less food waste as a result.

5 ways to reduce food waste

So, what can households do to reduce food waste while maintaining a healthy diet? Our research suggests the following key strategies:

1. plan ahead – creating a weekly meal plan and shopping list helps prevent impulse purchases and ensures food is consumed before it spoils

2. buy only what you need – over-purchasing, even of sustainable products, can lead to unnecessary waste

3. store food properly – understanding how to store fresh produce, dairy, and leftovers can significantly extend their shelf life

4. prioritise nutrition – choosing foods that fit into a balanced diet naturally leads to better portion control and mindful consumption, reducing waste

5. use what you have – before shopping, check your fridge and pantry to incorporate existing ingredients into meals.

Reducing waste is a bonus

People are often more motivated by personal health benefits than abstract environmental concerns. Our research suggests this is the key to reducing household food waste.

Encouraging meal planning for a balanced diet, careful shopping to avoid over-purchasing, and proper food storage, can make a big difference to the amount of food being wasted. This will not only help households save thousands of dollars each year, but also promote healthy eating habits.

Ultimately, developing a more sustainable food system is not just about buying the right products. It’s about how we manage, prepare and consume them.

Trang Nguyen receives funding from the End Food Waste Cooperative Research Centre and the Australian Government.

Jack Hetherington receives funding from the End Food Waste Cooperative Research Centre and the Australian Government and is a member of the Landcare Association of South Australia volunteer Management Committee.

Patrick O’Connor receives funding from the Australian Research Council, Agrifutures and the Commonwealth and State Governments

– ref. Why healthy eating may be the best way to reduce food waste – https://theconversation.com/why-healthy-eating-may-be-the-best-way-to-reduce-food-waste-253852

Source: The Conversation (Au and NZ) – By Ken Nosaka, Professor of Exercise and Sports Science, Edith Cowan University

Do you ever feel like you can’t stop moving after you’ve pushed yourself exercising? Maybe you find yourself walking around in circles when you come off the pitch, or squatting and standing and squatting again when you finish a run.

Sometimes the body knows what’s best for us, even if we’re not aware of the science.

Moving around after intense exercise actually helps the body recover faster. Here’s how it works – plus a tip for if you feel exactly the opposite (and just want to lie down).

What is ‘intense’ exercise?

There are different ways to measure exercise intensity. One is simply how hard it feels to you, known as the “rating of perceived exertion”.

This takes into account how fast you’re breathing, how much you’re sweating and how tired your muscles are. It also considers heart rate.

The average resting heart rate when you’re not exerting yourself is around 60–80 beats per minute, although this can vary between people.

The maximum healthy heart rate is based on subtracting your age from 220. So, if you’re 20 years old, that’s 200 beats per minute when you’re exercising as hard as you can.

This decreases as you age. If you’re 50 years old, your maximum heart rate would be around 170 beats per minute.

An increased heart rate helps pump blood faster to deliver fuel and oxygen to the muscles that are working hard. Once you stop exercising your body will begin its recovery, to return to resting levels.

Let’s look at how continuing to move after intense exercise helps do this.

Removing waste from the muscles

Whenever the body converts fuel into energy it also produces leftover substances, known as metabolic byproducts. This includes lactate (sometimes called lactic acid).

During intense exercise we need to burn more fuel (oxygen and glucose) and this can make the body produce lactate much more quickly than it can clear it. When lactate accumulates in the muscles it may delay their recovery.

We can reuse lactate to provide energy to the heart and brain and modulate the immune system. But to do this, lactate must be cleared from the muscles into the bloodstream.

After intense exercise, continuing to move your body – but less intensely – can help do this. This kind of active recovery has been shown to be more efficient than passive recovery (meaning you don’t move).

Returning blood to the heart

Intense exercise also makes our heart pump more blood into the body. The volume pumped to the muscles increases dramatically, while blood flow to other tissues – especially the abdominal organs such as the kidneys – is reduced.

Moving after intense exercise can help redistribute the blood flow and speed up recovery of the respiratory and cardiovascular systems. This will also clear metabolic byproducts faster.

After a long run, for example, there will be much more blood in your leg muscles. If you stand still for a long time, you may feel dizzy or faint, thanks to lowered blood pressure and less blood flow to the brain.

Moving your legs, whether through stretching or walking, will help pump blood back to the heart.

In fact around 90% of the blood returning from the legs via veins relies on the foot, calf and thigh muscles moving and pumping. The calf muscle plays the largest role (about 65%). Moving your heels up and down after exercising can help activate this motion.

What if you don’t feel like moving?

Maybe after exercise you just want to sit down in a heap. Should you?

If you’re too tired to do light movement such as stretching or walking, you may still benefit from elevating your legs.

You can lie down – research has shown blood from the veins returns more easily to the heart after exercise when you’re lying down, compared to sitting up, even if you’re still. Elevating your legs has an added benefit, as it reverses the effect of gravity and helps circulation.

Ken Nosaka does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Why can’t I keep still after intense exercise? – https://theconversation.com/why-cant-i-keep-still-after-intense-exercise-247555

Source: The Conversation (Au and NZ) – By Katherine Stevens, PhD Candidate, Education, Murdoch University

Starting high school is one of the most significant transitions young people make in their education. Many different changes happen at once – from making new friends to getting used to a new school environment and different behaviour and academic expectations.

What do young people think about this crucial time in their lives?

In our new research we spoke to ten students in Year 7 at a co-educational school in Perth, Western Australia in 2023. Students were interviewed in Term 3 and asked to share their thoughts about what the move to high school was like. We used a focus group to allow young people to explore their thoughts in a supportive environment.

Our current study is on a small scale. But it contributes to the growing body of research showing the importance of supporting students’ emotional wellbeing during school transitions.

Big changes take time

One of the key things students discussed was how it took time to adjust to high school.

This included managing their time to fit in new study commitments, such as homework for multiple subjects. They also had to locate new classrooms: “trying to go around the school and find them was hard”.

They noted how “different teachers have different rules […] so you gotta remember that and where you’re going”. Other students explained how there was “too much stuff for my brain to handle”.

As another student talked about the pressure to be organised:

It’s hard work going in from Year 6 primary school to Year 7. I can tell you that much. […] we’ve been expected from the first week to remember our timetable, be organised, not forget anything and know our classes […] it’s a lot of pressure and stress on you because we also get bucketloads of homework as well because we don’t get enough time to finish our work.

Adjusting to new friendship dynamics

Previous research has found when students start high school they are “more focussed on building new relationships and maintaining old friends”. They will then shift their focus to academic matters “later on”.

Students in our study certainly discussed the importance of friends. Some students had looked forward to making new friends and were enjoying being able to “make some proper friends that you can actually have a proper relationship with”.

Others spoke about their worries about not knowing anyone or having any friends (“I was always questioning myself. Am I going to make any friends?”). Others found their friendship groups changed from primary school (“I don’t talk to them as much […] it’s kind of not the same with them).

Students also talked about how working out new friendships took time.

you’ll find that yes, you might be friends […] but then you might find that they’re not the person who you thought they would be and you might not really want to be with them.

A lot more work

All students observed there was an increased workload of Year 7. Many students said they did not feel prepared for the volume of work and the time frames in which they were expected to complete it.

Some students “found it stressful to keep on top of work”. For some “the homework load and the amount of tests that we have and assessments” were the least enjoyable features of high school. They said it felt like in Year 7, “everything is about academics”.

But students also said they enjoyed being able to do a wider range of subjects. And the hands-on subjects such as cooking and design and technology helped them balance out more intense, academic subjects.

What can help Year 7s?

While students outlined challenges about moving from Year 6 to Year 7, they also identified three things to help make the transition easier.

1. A support network: students stressed it was important to have a support network, whether informally through fellow students, staff or a parent or formally with counselling. This is something schools can encourage with buddy groups or peer support.

2. Extra time: students talked about the importance of teachers giving them extra time to complete work and to get used to new places and processes at high school. They were grateful to teachers who “let you develop in the classroom”.

3. Transition programs: students said specific Year 7 transition programs – that prepare students for the new logistics and expectations – would also help. One student suggested a term in Year 6 should “replicate what it feels like to be in Year 7”.

The authors do not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.

– ref. ‘We get bucketloads of homework’: young people speak about what it’s like to start high school – https://theconversation.com/we-get-bucketloads-of-homework-young-people-speak-about-what-its-like-to-start-high-school-254474

Source: The Conversation (Au and NZ) – By James Kay, PhD Candidate at the College of Education, Psychology and Social Work, Flinders University

Women’s sport has recently enjoyed unprecedented success in Australia.

We have seen the Matildas sell out 16 successive home games, a world-record attendance for a women’s Test cricket match at the MCG, and women athletes contribute 72% of Australia’s gold medal tally at the Paris Olympics.

However, against the backdrop of these successes, women and girls continue to participate in community sport at lower rates than boys and men, a phenomenon known as the “gender play gap”.

What is the ‘gender play gap’?

The gender play gap is the difference between the number of women and girls participating in sport compared to the number of men and boys.

The gap exists from a very young age, with Australian government data showing nearly 30% more boys aged 0–14 participate in club or association sport than girls.

The gap closes to just 2% between the ages of 15–17, but then explodes to 43% for those aged 18–24.

Although the gap grows and shrinks at various points, it is consistently in favour of more men and boys participating in organised sport than women and girls.

Trying to find answers

Together with colleagues at Flinders University, we are currently working with the South Australian government to research how to close this gap.

The first stage found there isn’t enough research attention to this area. Of the 3,000+ studies included in a global literature search, only five focused on increasing rates of sport participation in young women.

We then conducted a large-scale qualitative study which uncovered the following reasons why young women drop out of sport, and often do not re-engage.

1. Sport stops being fun

Social experiences in sport are central to girls’ enjoyment and long-term participation. While friendships keep them engaged, negative team dynamics, exclusion and club politics can push them away.

2. A lack of genuine equality

Although progress in gender equality has been made, young women still struggle to have the same access to facilities and quality coaching as males. Typically, women and girls prefer women coaches who can relate to their experiences, yet women remain underrepresented in these roles.

3. They have too much on their plates

Schoolwork, part-time jobs and social lives compete for young women’s time, and many feel overwhelmed by increasing training commitments and school demands. In addition, girls as young as 13 are promoted to senior-age teams, which adds pressure and can break the social bonds with their peers.

4. They lose competitive opportunities

Although some young women enjoy a more relaxed, social approach to sport, others really value structured training and competition. Many girls end up dropping out because the competitive opportunities for them are not of the same standard as those available to boys. Some sports have fewer games per season for girls, or a shorter finals series than for boys.

How can we close the gap?

Sport participation efforts have typically focused on recruitment of new participants and retention of existing participants.

With so many young women dropping out of sport during adolescence, a renewed focus on re-engaging these previous participants may help to close the gender play gap.

Dropout is often considered a failure and a negative endpoint of a sport participation journey. However, there is a growing sentiment in sport research that transitioning out of sport temporarily may be necessary for some adolescents’ development.

It is okay for anyone to take a break from sport, but the sport needs to make it easier for them to return when they are ready. The key is to make re-engagement easy and appealing.

Re-engagement programs should be distinctly different from those aimed at new participants, and should revolve around the following key areas:

1. Targeted promotion and communication

Often, young women do not return to sport because they’re not aware of available opportunities if they return. Sport organisations should highlight programs that cater to those who want to start playing again, as well as those aimed at new participants.

2. Strengthen social connection

Young women are more likely to return to sport if they feel a sense of belonging and connection and have opportunities to create friendships outside of school. Programs that can foster strong social bonds while maintaining a focus on competition and skill development are most likely to be effective.

3. Champion equity and inclusion

Gender equity must be a priority for all sport organisations, with all genders having equitable access to high-quality training and competition.

4. Future-proofing

To achieve long-term gender equality in sport, organisations must actively future-proof their programs by encouraging women’s and girl’s leadership and providing young women with same-gender role models. By embedding gender equity into policies, coaching pathways and community engagement, sport organisations can create a more sustainable and welcoming environment for young women.

What’s next?

Despite the success of women’s sport in recent years, we have a long way to go to achieve genuine gender equality in sport.

Rather than relying on one-size-fits-all approaches to participation, sport organisations should adopt a targeted approach that may narrow the gender play gap and progress towards a more equitable sport participation landscape.

James Kay receives funding from the Office for Recreation, Sport and Racing, South Australia.

Sam Elliott receives funding from the Australian Sports Commission, the Office for Recreation, Sport and Racing, the South Australian National Football League, and the MRFF.

– ref. How to tackle the ‘gender play gap’: 4 ways to encourage young women back into sport – https://theconversation.com/how-to-tackle-the-gender-play-gap-4-ways-to-encourage-young-women-back-into-sport-251353

Source: The Conversation (Au and NZ) – By Arosha Weerakoon, Senior Lecturer and General Dentist, School of Dentistry, The University of Queensland

After decades of Hollywood showcasing white-picket-fence celebrity smiles, the world has fallen for White Lotus actor Aimee Lou Wood’s teeth.

Wood was bullied for her looks in her youth and expressed gratitude for the positive comments she received about her teeth since appearing on White Lotus. She also joked that people shouldn’t take to drastic measures like filing teeth to copy her famous gap.

But social media influencers are promising that teeth filing is a quick way to achieve a straight smile. Some influencers even use electric nail drills to cut gaps between their front teeth.

A few of my patients admit to taking a nail file to “buff” or file jagged edges off their teeth. Many do this without understanding what they are cutting away.

Here’s why you should think twice about filing your teeth at home, and why we as dentists or orthodontists occasionally resort to this.

When might a dentist file a tooth?

Dentists and orthodontists occasionally file a tooth’s enamel, known as enameloplasty, to conservatively smooth-down a chipped tooth, or even-out a smile.

But adjustments to a person’s smile are minute, and always limited to the superficial enamel layer of the tooth.

Why don’t dentists routinely file teeth?

Dentists and orthodontists are particular about what and when we cut because teeth don’t grow back like fingernails or hair.

So what is a tooth? A tooth is like an egg, with an outer diamond-like lustrous crystal enamel coat that envelops the hard yet springy dentine.

The enamel and dentine envelop a central chamber – containing blood vessels, cells and nerves – called the pulp.

The outer periphery of the pulp is surrounded by and nourishes special dentine-making cells called odontoblasts.

The odontoblasts are similar to our bone-making cells but don’t have the capacity to regenerate. These cells eventually give way to age-related changes or trauma.

Our enamel-making cells die when our teeth cut through our gums as children, which means we can no longer make new, or repair damaged, enamel.

So damaged enamel or dentine on the outer surface of the tooth cannot self-repair.

Cutting your teeth without sealing and filling them can leave the tooth exposed, destroying the previously well-insulated pulp and causing sensitivity and pain.

Infections can occur because the bacteria from the plaque inside your mouth travels into the tooth and inflames the pulp.

And just like a cut on your skin, the pulp inflames and swells as part of the healing process. But your pulp is encased in a hard enamel-dentine chamber, so it has no room to expand and swell, leading to a throbbing toothache.

What can you do if you want to change your teeth?

You can change your smile without compromising the integrity of your teeth. Dentists can even create or close gaps.

And we will always offer conservative options, including “no treatment”, to keep as many of your teeth whole and healthy as possible.

Sometimes, your dentists and or orthodontists may offer options to:

• use braces to move teeth. Moving teeth can create a different smile, and sometimes change the shape and position of your jaws, lips and cheeks

• whiten teeth to remove superficial stains to make your smile look more visually even

• adapt white resin fillings or veneers to add and change the shape of teeth, with little or no tooth cutting required.

If you’re concerned about the look of your teeth, talk to your dentist or orthodontist about options that won’t damage your teeth and make them last the distance.

Don’t forget that Aimee Lou Wood’s iconic smile makes her stand out from the crowd. Your smile is what makes you special, and is part of who you are.

Arosha Weerakoon is a member of the Australian Dental Association and Fellow of the Royal Australasian College of Dental Surgeons. She is the Deputy Chair of the Country to Coast Queensland Clinical Advisory Council. Arosha is a Colgate Advocate for Oral Health. In this role, she promotes professionalism to her peers. She is the principal and owner of a general dental practice.

– ref. Want straighter teeth or a gap between? Don’t believe TikTok – filing them isn’t the answer – https://theconversation.com/want-straighter-teeth-or-a-gap-between-dont-believe-tiktok-filing-them-isnt-the-answer-253931