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.
7 things you missed at COP22 while Trump hogged the headlines
It was a ‘uuugggggee story. But while the media reacted in horror, the world – soon to be renamed Planet Trump – and the COP22 climate talks kept turning
Turkey: Notes from a state of (climatic) emergency
Coal-rich Turkey is straying further and further from the path of climate safety. Can it be convinced to come back to the fold?
January 20, 2018: the day US could leave the Paris agreement
One year from his inauguration, Trump could take the US out of the Paris deal and into the climate wilderness
Uncertainty on Trump climate stance overshadows UN talks
At COP22 in Marrakech, delegates struggle to digest the property billionaire’s surge to the US presidency
Western Saharan delegate barred from attending Marrakech climate talks
Vice-president of the pan-African Parliament Suelma Beirouk told Climate Home she was held by Moroccan police for 75 hours without food or water
US flirts with delusion after five years of wild weather
World Meteorological Organization report shows Hurricane Sandy, 2014 Atlantic cyclones and a 2012 heatwave were made more intense by climate change
South Korea leads list of 2016 climate villains
Seoul *weakened* its climate ambition after the Paris Agreement, joining Saudi Arabia, Australia and New Zealand in laggards’ corner
How scientists plan to avoid another global warming “pause” row
Scientists need to fight the inevitable misinformation campaign when temperatures fail to rise in orderly fashion
Australia is withholding carbon emissions data, says UN
UNEP chief scientist says major report was unable to assess Australia’s progress towards its emissions targets because of a lack of information
UNEP: global climate action “still not good enough”
Greenhouse gas emissions need to fall a further 25% from projected levels in 2030 to meet 2C global warming limit, says report
Former US slave nation heads to Marrakech climate summit
“It means so much to our community for me to get there and have our story be a part of this finally,” says Queen Quet of the Gullah-Geechee nation
New Zealand uses pine forests, creative accounting to dodge carbon cuts
Proposed forestry accounting changes would allow New Zealand to claim credits without cutting emissions, NGO claims
German vice chancellor attacks China’s electric car targets
New proposals to set minimum quota for electric cars in China are “clearly discriminatory” toward German carmakers, says Sigmar Gabriel
Global carbon intensity falls, on declining coal use
China leads the charge for emissions efficiency, but faster progress is needed to meet the Paris climate goals
World has entered new climate reality – UN weather chief
Global average CO2 concentrations breached symbolic milestone of 400ppm for the first time in 2015, while temperatures soared
Antarctic ice shelf collapse pits fishing against science
British scientists want a fishing moratorium while they study newly open waters, but Russia stands in their way
Slums boom in Philippines typhoon danger zones
Communities destroyed by Haiyan refuse to join government relocations as new residents swell unauthorised seaside neighbourhoods
UN tells Bangladesh to halt mangrove-threatening coal plant
Rampal coal plant poses a “serious threat” to a key ecosystem for Bengal tigers and must be cancelled, says the UN world heritage body
Ocean heatwave destroys Tasmania’s unique underwater jungle
The last giant kelp forest on the east coast of Tasmania has been lost, report divers and scientists
In pictures: creatures of Tasmania’s disappearing kelp forests
The loss of Tasmania’s great kelp forests wipes out a huge, complex habitat for a host of weird and beautiful creatures