New Zealand Prime Minister Chris Hipkins’ decision to “reprioritise” future transport budgets — away from walking, cycling and public transport — in order to pay for Cyclone Gabrielle road reconstruction is short-sighted amid the climate crisis, says Greenpeace.

However, Hipkins told RNZ Morning Report today the decision to refocus transport spending would not compromise action on climate change.

“Robbing money from climate mitigation initiatives like walking and cycling, which reduce emissions, in order to fix up climate-related storm damage makes no sense,” said Greenpeace campaigner Christine Rose in a statement.

“This shouldn’t be an either-or situation. Yes, we need to get access back for cyclone-hit areas.

“But why would you finance that by cancelling plans for a transport system that cuts climate emissions that otherwise intensify the storms?”

Transport Minister Michael Wood had announced plans to prioritise climate change in the Government Policy Statement review, which sets the high level direction for spending over the next five years.

However, less than a day later, after Monday’s Cabinet meeting, Prime Minister Hipkins stepped away from this commitment.

Transport pollution
Hipkins argued that the response to Cyclone Gabrielle required reprioritisation to repair bridges and roads rather than to support public transport, walking and cycling.

Transport is New Zealand’s second biggest climate polluter after the agriculture industry.

“Cyclone Gabrielle was a tragic reminder that the climate crisis is here,” Rose said.

“The government must pull all the stops to prevent storms like this from getting worse in future. And that means putting a brake on climate pollution.

“This is the time the government should instead be accelerating climate solutions like clean transport options. By distancing himself from [former Prime Minister] Jacinda Ardern’s commitment to climate change, Hipkins is aligning himself with reactionary pro-road lobbies.”

The Greenpeace statement said damage to roads, bridges and infrastructure showed how vulnerable the transport network was to climate change. Building more roads was not a long-term solution.

“It’s time to reinvent our transport system so it prioritises people and freight, not cars, and mitigates climate change as well as adapting to the new climate reality,” Rose said.

She said that if Hipkins claimed there was no money to pay for reconstruction — perhaps he should consider the fact that the biggest climate polluter, Fonterra — was paying nothing for its methane emissions.

“If the government doesn’t take the lead during the climate crisis, to allocate spending for climate solutions, then it’s the wrong government for our times.”

Emissions still in the mix, says Hipkins
RNZ News reports that Prime Minister Hipkins said the decision to refocus transport spending would not compromise action on climate change.

Hipkins said that while Cabinet had not considered a final transport policy statement yet, with weather having so much adverse impact on the country over the last month it was essential there needed to be “a weighting” on what the transport priorities needed to be.

He disagreed there was an irony to changing the policy at this time in response to weather disasters that were being blamed on climate change.

The government has hit the brakes on making emissions reductions its top transport priority, saying Cyclone Gabrielle has changed everything.

Under a policy to make emissions reduction the “overarching focus” of its next three-yearly transport plan, the government wanted to reallocate some of the money normally spent on road maintenance — that tallies nearly $2 billion a year — towards bus and bike lanes.

But now the focus has switched to an emergency style plan to repair roads devastated in Cyclone Gabrielle and other recent storms.

Both National and the Greens have criticised the government’s reversal.

National has called it a “chaotic backpedal” while the Green Party has urged the government not to defer climate change spending.

Article by AsiaPacificReport.nz

The extraordinary flood event Auckland experienced on the night of January 27, the eve of the city’s anniversary weekend, was caused by rainfall that was literally off the chart.

Over 24 hours, 249mm of rain fell — well above the previous record of 161.8mm. A state of emergency was declared late in the evening.

It has taken a terrible toll on Aucklanders, with three people reported dead and at least one more missing. Damage to houses, cars, roads and infrastructure will run into many millions of dollars.

Aerial footage shows the scale of devastation following the #Auckland #floods as clean up gets underway.

Several houses can be seen damaged by large slips, while rivers could be seen overflowing.

👉 More on this story: https://t.co/DgUHYaCFGS pic.twitter.com/aVTPq2D4Ij

— 1News (@1NewsNZ) January 28, 2023

Watching the images roll into social media on Friday evening, I thought to myself that I have seen these kinds of pictures before. But usually they’re from North America or Asia, or maybe Europe.

However, this was New Zealand’s largest city, with a population of 1.7 million.

Nowhere is safe from extreme weather these days.

🌧 Radar time lapse of the Auckland rain since yesterday morning

🔎 Look closely at the north-to-south line of torrential rain between 5-9pm directly over the city

🔺 Normally features like this move on relatively quickly, but not in this case, which was what made it so extreme pic.twitter.com/cv3jJaKr8R

— MetService (@MetService) January 27, 2023

How it happened
The torrential rain came from a storm in the north Tasman Sea linked to a source of moisture from the tropics. This is what meteorologists call an “atmospheric river”.

The storm was quite slow-moving because it was cradled to the south by a huge anticyclone (a high) that stopped it moving quickly across the country.

Embedded in the main band of rain, severe thunderstorms developed in the unstable air over the Auckland region. These delivered the heaviest rain falls, with MetService figures showing Auckland Airport received its average monthly rain for January in less than hour.

Record breaking rain in Auckland. Although the heavy band of rain has moved off to the east there is still a change of showers so the total for rainfall could climb even higher. The impacts of the last 24 hours will be felt by many in Auckland for a long time. Take care out there pic.twitter.com/kiIm6Tsrro

— MetService (@MetService) January 27, 2023

The type of storm which brought the mayhem was not especially remarkable, however. Plenty of similar storms have passed through Auckland. But, as the climate continues to warm, the amount of water vapour in the air increases.

I am confident climate change contributed significantly to the incredible volume of rain that fell so quickly in Auckland this time.

Warmer air means more water
There will be careful analysis of historical records and many simulations with climate models to nail down the return period of this flood (surely in the hundreds of years at least, in terms of our past climate).

How much climate change contributed to the rainfall total will be part of those calculations. But it is obvious to me this event is exactly what we expect as a result of climate change.

One degree of warming in the air translates, on average, to about 7 percent more water vapour in that air. The globe and New Zealand have experienced a bit over a degree of warming in the past century, and we have measured the increasing water vapour content.

But when a storm comes along, it can translate to much more than a 7 percent increase in rainfall. Air “converges” (is drawn in) near the Earth’s surface into a storm system. So all that moister air is brought together, then “wrung out” to deliver the rain.

A severe thunderstorm is the same thing on a smaller scale. Air is sucked in at ground level, lofted up and cooled quickly, losing much of its moisture in the process.

While the atmosphere now holds 7 percent more water vapour, this convergence of air masses means the rain bursts can be 10 percent or even 20 percent heavier.

Auckland bus way swamped pic.twitter.com/9XIcsm2Lrz

— Adam (@CrazyIdeasNZ) January 27, 2023

Beyond the capacity of stormwater systems
The National Institute of Water and Atmosphere (NIWA) estimates that over Auckland, one degree of warming translates to about a 20 percent increase in the one-hour rainfall, for a one-in-50-year event.

The longer we continue to warm the climate, the heavier the storm rainfalls will get.

Given what we have already seen, how do we adapt? Flooding happens when stormwater cannot drain away fast enough.

So what we need are bigger drains, larger stormwater pipes and stormwater systems that can deal with such extremes.

The country’s stormwater drain system was designed for the climate we used to have — 50 or more years ago. What we need is a stormwater system designed for the climate we have now, and the one we’ll have in 50 years from now.

Another part of the response can be a “softening” of the urban environment. Tar-seal and concrete surfaces force water to stay at the surface, to pool and flow.

If we can re-expose some of the streams that have been diverted into culverts, re-establish a few wetlands among the built areas, we can create a more spongy surface environment more naturally able to cope with heavy rainfall.

These are the responses we need to be thinking about and taking action on now.

We also need to stop burning fossil fuels and get global emissions of carbon dioxide and other greenhouse gases down as fast as we can. New Zealand has an emissions reduction plan — we need to see it having an effect from this year.

And every country must follow suit.

As I said at the start, no community is immune from these extremes and we must all work together.

Dr James Renwick, professor, Physical Geography (climate science), Te Herenga Waka — Victoria University of Wellington. This article is republished from The Conversation under a Creative Commons licence. Read the original article.

Article by AsiaPacificReport.nz