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Andy Reisinger

@andyreisinger

Climate science and policy. Also the occasional photo and random thoughts. Currently serving as Commissioner at He Pou A Rangi, New Zealand Climate Change Commission; former IPCC vice-chair WGIII. Usual disclaimers...

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Latest posts by Andy Reisinger @andyreisinger

A black and white photograph of the last evening light on Aoraki Mt Cook, with the Hooker River in the foreground; black rocks glistening in the milky silky water

A black and white photograph of the last evening light on Aoraki Mt Cook, with the Hooker River in the foreground; black rocks glistening in the milky silky water

Aoraki Mt Cook and Hooker River

#photography #landscape #mountains #monochrome #blackandwhite

06.03.2026 09:25 πŸ‘ 16 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Meet three scientists who said no to Epstein The warning signs included a web search, a mother’s doubts, and inklings of a β€œsexist attitude”

How did these men know to stay away from Epstein? One googled him, one asked his mom for advice, and one actually listened to what Epstein said to him and quickly realized he was a witless misogynist.

It wasn't that hard, and every scientist who claims they didn't know is either lying or stupid.

05.03.2026 00:10 πŸ‘ 854 πŸ” 289 πŸ’¬ 7 πŸ“Œ 12
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Google Has a Secret Reference Desk. Here's How to Use It. 40 Google features to find exactly what you need, the alternative search engines that do things Google won't, and the reference desk framework underneath all of it.

TIL about a large number of operators/tools that can be used to make Google searches much more focused and productive
πŸ§ͺ #philsci

cardcatalogforlife.substack.com/p/google-has...

03.03.2026 20:04 πŸ‘ 53 πŸ” 23 πŸ’¬ 1 πŸ“Œ 4
Post image Post image

As Italy approves a decree to reimburse gas plants for carbon costs and gas prices jump 80%, it’s worth recalling that in 2018 both Italian and Spanish power prices were tightly linked to gas. Since then, Spain has largely decoupled, mainly thanks to renewables. Italy hasn’t.

03.03.2026 14:12 πŸ‘ 67 πŸ” 42 πŸ’¬ 4 πŸ“Œ 8

When we talk about Baby Boomers not getting off the stage: In 1997, the US president was born in 1946.

In 2007, the US president was born in 1946.

In 2017, the US president was born in 1946.

And next year in 2027? The US president will have been born in 1946.

03.03.2026 20:10 πŸ‘ 10707 πŸ” 3251 πŸ’¬ 198 πŸ“Œ 244
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The war on Iran likely brings a new oil price shock and windfall profits.

So, who stands to win?

Our research shows: Last time around (2022), the US reaped the largest fossil fuel profits of any country ($377bn). 50% went to the top 1%, only 1% to the bottom 50%. A🧡

01.03.2026 17:36 πŸ‘ 441 πŸ” 260 πŸ’¬ 7 πŸ“Œ 31

no national prime minister could possibly be expected to anticipate that instability in the middle east could lead to an energy price shock that threatens our energy security

01.03.2026 09:34 πŸ‘ 37 πŸ” 5 πŸ’¬ 3 πŸ“Œ 0
Silhouette of a praying mantis, seen from the other side of a veined leaf

Silhouette of a praying mantis, seen from the other side of a veined leaf

The leaf is greener on the other side πŸ“·

21.02.2026 06:13 πŸ‘ 15 πŸ” 1 πŸ’¬ 0 πŸ“Œ 2
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Seven metre swells possible as severe weather to hit Wellington Wellingtonians are being warned to stay off south coast beaches as severe southerly winds and heavy rain strike the region.

Here's a new storm-related climate change threat - Wellingtonians are being advised to stay away from seaspray whipped up by the strong winds because it will contain πŸ’© due to raw sewage release into the ocean. What an absolute disgrace #NZPol
www.rnz.co.nz/news/nationa...

15.02.2026 04:11 πŸ‘ 51 πŸ” 21 πŸ’¬ 4 πŸ“Œ 7

In case anyone's wondering how Jeff Bezos feels about climate policy these days, the Washington Post editorial board just heartily endorsed Trump ripping up the EPA's "endangerment finding," which allows the federal government to regulate greenhouse gases as pollutants.

11.02.2026 18:01 πŸ‘ 191 πŸ” 95 πŸ’¬ 12 πŸ“Œ 13

This woman is yelling "Why do you care about mass child sexual abuse? The market is up!" and showing her entire rear end to the world, and we need to force them into this corner as often as possible.

11.02.2026 18:47 πŸ‘ 12 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

If I hadn’t already cancelled my subscription for the Post, this would have cemented the deal.
archive.ph/eoeiZ

11.02.2026 18:33 πŸ‘ 27 πŸ” 6 πŸ’¬ 2 πŸ“Œ 1
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Exceeding 1.5 Β°C requires rethinking accountability in climate policy A scientific foundation is required to establish nations’ responsibilities in a hotter β€˜overshoot’ world.

How should climate science and policy respond to a potential exceedance of 1.5Β°C? We provide our perspective on this in a new @Nature comment πŸ”— nature.com/articles/d41586-026-00247-y led by Gaurav Ganti with Sabine Fuss, @joerirogelj.bsky.social, @setupelz.bsky.social & Keywan Riahi 1/

28.01.2026 22:02 πŸ‘ 21 πŸ” 17 πŸ’¬ 2 πŸ“Œ 1
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How well can we quantify when 1.5 Β°C of global warming has been exceeded? Abstract. Parties to the 2015 Paris Agreement agreed to limit the long-term increase in global average temperature to well below 2 Β°C and pursue efforts to keep temperatures below 1.5 Β°C relative to p...

New discussion paper just dropped that’s taken shall we say a little work to get this far … essd.copernicus.org/preprints/es... please be kind. Not on an at all sensitive topic in the slightest.

28.01.2026 08:48 πŸ‘ 133 πŸ” 70 πŸ’¬ 8 πŸ“Œ 6

Solidarity, particularly across race and class, is Kryptonite for authoritarian regimes. They can only thrive when their us v. them framing is adopted by society at large, and they join as active or passive collaborators with the regime. So the only response they have is to raise the cost of unity

24.01.2026 23:57 πŸ‘ 4117 πŸ” 1393 πŸ’¬ 47 πŸ“Œ 34
Statement from Michael and Susan Pretti
Parents of Alex Jeffrey Pretti

β€œWe are heartbroken but also very angry.

Alex was a kindhearted soul who cared deeply for his family and friends and also the American veterans whom he cared for as an ICU nurse at the Minneapolis VA hospital. Alex wanted to make a difference in this world. Unfortunately, he will not be with us to see his impact.

I do not throw around the β€˜hero’ term lightly. However, his last thought and act was to protect a woman. The sickening lies told about our son by the administration are reprehensible and disgusting. Alex is clearly not holding a gun when attacked by Trump’s murdering and cowardly ICE thugs. He had his phone in his right hand and his empty left hand is raised above his head while trying to protect the woman ICE just pushed down, all while being pepper sprayed. 

Please get the truth out about our son. He was a good man. Thank you.

Statement from Michael and Susan Pretti Parents of Alex Jeffrey Pretti β€œWe are heartbroken but also very angry. Alex was a kindhearted soul who cared deeply for his family and friends and also the American veterans whom he cared for as an ICU nurse at the Minneapolis VA hospital. Alex wanted to make a difference in this world. Unfortunately, he will not be with us to see his impact. I do not throw around the β€˜hero’ term lightly. However, his last thought and act was to protect a woman. The sickening lies told about our son by the administration are reprehensible and disgusting. Alex is clearly not holding a gun when attacked by Trump’s murdering and cowardly ICE thugs. He had his phone in his right hand and his empty left hand is raised above his head while trying to protect the woman ICE just pushed down, all while being pepper sprayed. Please get the truth out about our son. He was a good man. Thank you.

Kare 11 local news just read, in full, this statement from Michael and Susan Pretti, the parents of Alex Pretti.

"Please get the truth out about our son."

25.01.2026 00:43 πŸ‘ 24930 πŸ” 12859 πŸ’¬ 200 πŸ“Œ 448
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We have a new paper in Science today on how malicious AI swarms can threaten democracy.

AI systems can already coordinate autonomously, infiltrate communities, and fabricate social consensus.

www.science.org/doi/10.1126/...

Led by @kunstjonas.bsky.social & @daniel-thilo.bsky.social!

22.01.2026 19:09 πŸ‘ 198 πŸ” 122 πŸ’¬ 8 πŸ“Œ 19

One of the more absurd ideas.

People tried to appease Hitler by letting him annex various countries in exchange for European peace. Which didn't go great I understand.

23.01.2026 07:27 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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The Trump administration has a Nazi problem | Mehdi Hasan Think I’m exaggerating? Consider the copious amounts of evidence

"So here’s a simple rule for Trump and his friends: if you don’t want to be called Nazis, stop hiring Nazis, quoting Nazis and posting Nazi imagery."

23.01.2026 07:09 πŸ‘ 32 πŸ” 17 πŸ’¬ 2 πŸ“Œ 1

Society parried the ozone layer, acid rain, and Y2K back to back and instead of going "wow, parrying is badass" a lot of people went "society didn't even get hit so I guess there's no need to learn how to parry" and instantly took a thousand hits

18.01.2026 16:18 πŸ‘ 2027 πŸ” 720 πŸ’¬ 22 πŸ“Œ 11

Kia ora @metservice.com

Please stop using X. πŸ™πŸΌ
I’m pretty sure you don’t really want to be supporting such an entity anymore.

#nzpol

15.01.2026 10:53 πŸ‘ 21 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0
Temperature effect of emission of 1t of methane, and of removing 80t of carbon dioxide for 30 years. The net effect of both actions on temperature is about neutral for the first 10 years, the cooling up to 30 years, and then slight warming beyond 30 years.

Temperature effect of emission of 1t of methane, and of removing 80t of carbon dioxide for 30 years. The net effect of both actions on temperature is about neutral for the first 10 years, the cooling up to 30 years, and then slight warming beyond 30 years.

"Assessing equivalence based on avoided economic damages suggests that about 87 temporary CO2 removals over a period of 30 years are needed to offset 1 t of methane." www.nature.com/articles/s41...

Could be thought of as an application of GWP100 but scaled to apply within the first 30 years only.

09.01.2026 08:25 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I cannot emphasize enough that the attempts to anthropomorphize an algorithm is a fundamental act of journalistic malpractice and an intentional act to shield the people responsible for this. It's fucking shameful.

02.01.2026 17:03 πŸ‘ 7590 πŸ” 2405 πŸ’¬ 4 πŸ“Œ 35

<Taps sign>
www.sup.org/books/sociol...

27.12.2025 01:06 πŸ‘ 66 πŸ” 19 πŸ’¬ 3 πŸ“Œ 0

The question is, given that we have an electorate that selected Trump yet again, can we in fact do better? If the answer is no, the future looks pretty bleak.

I'd like to see more effort on "How can we lead the people where we need to go" vs "What approach is inadequate enough to sell?"

2/3

25.12.2025 20:07 πŸ‘ 26 πŸ” 2 πŸ’¬ 2 πŸ“Œ 0
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Cabinet overrode health advice in decision to ban puberty blockers Health officials said there was 'no evidence base' about the likely impacts of the Government's decision to ban puberty blockers for transgender youth.

New from me: Health officials said there was β€˜no evidence base’ about the likely impacts of the Government’s decision to ban puberty blockers for transgender youth.
newsroom.co.nz/2025/12/22/c...

21.12.2025 18:25 πŸ‘ 139 πŸ” 57 πŸ’¬ 7 πŸ“Œ 11
a graphic showing the slower emissions reductions cause more greenhouse gas emissions over time

a graphic showing the slower emissions reductions cause more greenhouse gas emissions over time

This isn't a debate about policy design or differing paths to the same goal

One is a plan to allow more emissions (and therefore, more harm / death), and one is a plan to *at least try* to reduce that harm.

The 'debate' is about whether we should let fossil fuels kill people, or try to stop that

21.12.2025 19:33 πŸ‘ 74 πŸ” 33 πŸ’¬ 1 πŸ“Œ 0

Clear case for a capitol gains tax

03.12.2025 05:37 πŸ‘ 6 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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India’s Desert State Reignites Coal-Fired Power Debate The competitive cost of batteries is making clean energy a viable alternative to coal in parts of the country.

The Indian state of Rajasthan produces more solar than any other. It has rejected a 3.2 GW coal power plant, because the bids to build it were more expensive than bundling renewables with batteries.

πŸŽπŸ”— www.bloomberg.com/news/newslet...

01.12.2025 12:39 πŸ‘ 246 πŸ” 95 πŸ’¬ 7 πŸ“Œ 27

To be clear: the specific intention behind the state naming and singling out journalists it doesn't like is to put those journalists in danger.

30.11.2025 09:29 πŸ‘ 40 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0