Karl Mathiesen

@KarlMathiesen

Senior climate correspondent, POLITICO. Get in touch at [email protected]. DMs open. Ask for signal, protonmail. From Tasmania.

Joined September 2011

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24KFollowers

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Karl Mathiesen@KarlMathiesen · May 19

NEW: One camp wants the United States to compete with Beijing on clean energy. The other says playing in that game would make the United States the loser. With @zcolman politico.com/news/2025/05/1…

KarlMathiesen's tweet card. Efforts to preserve Biden-era tax breaks for green technology are running into an administration focused on fossil fuels — and unwilling to play on what it sees as Beijing's turf.

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Karl Mathiesen@KarlMathiesen · Apr 9

Will the Trump 2.0 admin blithely ignore climate talks or try to derail them? Strong evidence for the latter here with @FonieMits scoop. politico.eu/article/donald…

KarlMathiesen's tweet card. The attack on the shipping deal is part of a wider U.S. rejection of policies to fight climate change.

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Karl Mathiesen@KarlMathiesen · Jul 3

‘She’s pretty much alone’: The EU’s greenest leader fights the tide Teresa Ribera, the EU's 2nd in charge, has won significant victories in secret against a wave of attacks and disinterest. w/ @ZiaWeise politico.eu/article/teresa…

KarlMathiesen's tweet card. The European Commission’s second-most powerful politician is isolated, beleaguered and under attack — just like the green policy she has vowed to protect.

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Karl Mathiesen@KarlMathiesen · Jul 1

NEW: Sudanese economist Mustafa Babiker — a long-term employee of the Saudi Aramco oil company — has been proposed as coordinating lead author of a crucial chapter of the next UN climate science report, a leaked document shows. politico.eu/article/saudi-…

KarlMathiesen's tweet card. The proposed selection of a Saudi Aramco oil company staffer as one of the authors of a key science report has been denounced as “political capture.”

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Karl Mathiesen Retweeted

Emilio Casalicchio@e_casalicchio · Jun 20

🫖 IN LONDON PLAYBOOK PM TONIGHT ... 🛩️ SCOOP from @KarlMathiesen: Keir Starmer once defended a protester who tried to vandalise U.S. airforce planes in Iraq protest ⚰️ PLUS: How the assisted death debate went down, via @NoahKeate 🖇️ Link in next tweet ...

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Karl Mathiesen Retweeted

Louise Guillot / @l-guillot.bsky.social@l_guillot · Jun 13

The EU's 2040 climate target is set to be unveiled on July 2. So ahead of the big reveal, POLITICO surveyed all 27 climate ministries to check what they'd like to see included in this proposal. W/ @ZiaWeise & @KarlMathiesen : politico.eu/article/eu-cri…

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Karl Mathiesen@KarlMathiesen · Jun 2

NEW: EU climate chief lobbied Germany to back weakened 2040 goal politico.eu/article/eu-cli…

KarlMathiesen's tweet card. Wopke Hoekstra successfully pushed the incoming coalition to back foreign carbon credits, helping shift the EU-level 2040 talks.

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Karl Mathiesen@KarlMathiesen · May 21

🇪🇺 I'm writing POLITICO's Brussels Playbook today – tell me what's happening in your world ... [email protected]

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Karl Mathiesen@KarlMathiesen · May 12

Lessons for Australia? Unreported details of how UK paid off Turkey for COP26. Inward investment conference in London Votes for Turkish UN candidates Backing for UN positions + 😬 according to 1 diplo a broken promise to back Turkey over Aus for COP31 politico.eu/article/austra…

KarlMathiesen's tweet card. A previously unreported package of investment pledges and U.N. support got Turkey to back down last time.

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Karl Mathiesen Retweeted

Emilio Casalicchio@e_casalicchio · May 8

NEW: How the UK lost respect for its veterans "Once the old guard is lost, Britain will need to reconsider how it celebrates VE Day and Remembrance, and whether younger generations of veterans deserve the same reverence and honor for their willingness to die for their nation."

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Karl Mathiesen@KarlMathiesen · Apr 28

NEW: Trump officials arrived in the UK last week with a simple message: China is a malign actor, benefiting from misguided climate policies, and the world is better off copying America's newfound embrace of fossil fuels. It was met with a shrug. politico.eu/article/trump-…

KarlMathiesen's tweet card. The U.S. argument against the green transition felt “quiet and out of place,” said one official.

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Karl Mathiesen@KarlMathiesen · Apr 25

NEW: The IEA's research has shown increasingly optimistic outlooks for clean power and gloomy forecasts for oil. The Trump administration wants that to change. w/ @saraschonhardt, @CharlieCooper8 and @nicolas_camut politico.eu/article/donald…

KarlMathiesen's tweet card. U.S. and European officials are sparring in meetings of the International Energy Agency, which helps guide global investments and policies.

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Karl Mathiesen Retweeted

Charlie Cooper@CharlieCooper8 · Apr 24

EXC: Ed Miliband walks the tight rope between US and China on energy and climate - even as Trump admin dumps on allies’ net zero goals at London summit w/ @KarlMathiesen politico.eu/article/ed-mil…

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Karl Mathiesen@KarlMathiesen · Apr 24

“There can be no renewal of our relationship with nature without a renewal of humanity itself.” On the loss of a mighty moral voice on climate change. politico.eu/article/pope-f…

KarlMathiesen's tweet card. In the weeks before his death, Francis repeated a decade-old plea for a break from both Trumpian greed and the left’s economic rationalism.

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Karl Mathiesen Retweeted

David King@KingHanley27 · Apr 22

Kermit the frog, ’felt amphibian’, courtesy of The Times TMS @secondmentions

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Karl Mathiesen@KarlMathiesen · Apr 9

My POLITICO colleagues are covering the hell out of Trump's move to burn down the apparatus of state governance, science and industry that was supposed to be the bulwark against his fossil fuel agenda. politico.com

KarlMathiesen's tweet image. My POLITICO colleagues are covering the hell out of Trump's move to burn down the apparatus of state governance, science and industry that was supposed to be the bulwark against his fossil fuel agenda.

politico.com

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Karl Mathiesen@KarlMathiesen · Apr 9

Major implications for the EU's climate efforts, about to be revealed.....

CChris Lunday@lundayfunday · Apr 9

🚨 BREAKING: Friedrich Merz seals coalition deal, paving way to become Germany’s next chancellor. politico.eu/article/german…

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Karl Mathiesen Retweeted

Melaine Le Roy@subfossilguy · Apr 5

Cerros de la Plaza (4,865 m, PN Cocuy, COL) Another tropical glacier has disappeared this year! 😭 You can't say you didn't know! 🙈 📷 Daniel Zoque / IG

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