Karl Mathiesen
Karl Mathiesen is Climate Home News' editor. He has written for national newspapers, newswires and magazines in Australia and the UK. Before joining Climate Home News in 2016, he worked mostly with the Guardian’s environment desk. He is based in London.
US launches nuclear initiative to cut carbon with Canada, Japan, UK
While the Trump administration generally avoids discussion of climate change, it is participating in a coalition to promote “clean, reliable” nuclear power
Climate Home News wins online media award
At a prestigious UK journalism awards ceremony, CHN was named best specialist or local news site of 2018, beating bigger rivals like BBC East of England
Emerging economies say rich countries must still lead on climate action
Ministers from China, Brazil, South Africa and India want to see more action from the rich world, in a critical year for writing the rules of the Paris Agreement
EU energy chief flies to Tehran to talk gas supply, as US sanctions loom
As companies withdraw from deals involving Iran, fearing US sanctions, the EU scrambles to preserve growing energy cooperation
11 ways the Paris climate deal is working in the real world
As climate talks stall, it’s clear the UN process is no longer the major driving force of the climate transition. But does that matter?
Eyes on ministers to intervene as UN climate talks get mired in old battles
As negotiations in Bonn result in minimal progress on rules for the Paris Agreement, delegates look to political leaders to break the deadlock
Rich world faces questions on who will replace US climate cash
‘We need to ask developing countries how to address that gap,’ says G77 chair, calling for concessions on climate finance to unlock stalled talks
Extra climate talks scheduled amid Bonn stalemate
UN climate officials add a week-long session in Bangkok in September to the diary, as Bonn talks make insufficient progress on the Paris Agreement rulebook
Bonn morning brief: The wisdom of Talanoa
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Bonn morning brief: Manels and nightmares
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Bonn morning brief: ‘Dramatic as far as the UNFCCC goes’
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Bonn morning brief: Mayday
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Russia fumes as US raises Crimea occupation during climate talks
Western allies say Russia is using UN climate talks to ‘normalise’ its claim to the peninsula, while Russia accuses them of politicising the delicate process
Bonn morning brief: ‘We simply don’t have any time to waste’
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Poland appoints deputy minister to run biggest climate talks since Paris
Naming of Michał Kurtyka as COP president breaks tradition of political heavy hitters taking top climate role, but Polish non-intervention may boost ambition
Africa holds EU climate agenda ransom
As a tough year of talks begins, the EU is searching for allies in a fight with China over the rules of the Paris Agreement, but Africa’s help will come at a cost
Documents shed light on BP’s failures in the Great Australian Bight
A major oil spill in the region would have covered up to 750km of beaches and disrupted whale migration, reveal government documents BP tried to suppress
White House to tap energy official as new climate lead – reports
Wells Griffith, who worked on the Trump campaign, has spent the last year negotiating exports deals for the US energy industry
Video: Michael Bloomberg appointed UN climate envoy
The New York billionaire immediately called on Donald Trump to revise his views on climate change and show he was a “great leader”
Dutch PM calls for more ambitious 2030 EU climate target
Mark Rutte said Europe had a responsibility to align its targets with the Paris climate deal, joining the Swedes and French in pushing for sharper cuts