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.
Marshall Islands become first nation to ratify global HFC treaty
President hails Kigali deal as “good for our people, the planet, and the profits of those that follow in our footsteps”
China coal use fell again in 2016, solar capacity rose 82%
Massive investments in clean energy and economic shifts continue to dampen demand for coal in the world’s largest carbon emitter
Climate fund, EPA likely to pay for huge Trump defence spend
As the US president announces a $54bn increase in defence spending, environmental agencies and UN climate funds face the axe
100+ species face extinction as warming hits Australia’s southern waters
Scientists tell senate committee that marine animals and plants at Australia’s southern-most point have “nowhere to go” and will disappear this century
Bush EPA chief damns Pruitt with faint praise
Mike Leavitt, Republican ex-governor of Utah, offers lukewarm endorsement of Donald Trump’s environment pick, calls for international climate cooperation
Australian Labor will not back 2030 renewable energy target
After political attacks, Labor says it will not legislate a renewable energy target, despite a policy promising to deliver a 50% share by 2030
Fossil fuels subsidies ‘jeopardising climate deal’, say major investors
A group of investors and insurers who manage $2.8trn has called on the G20 to end public funding for coal, oil and gas by 2020
Australia: Fires, floods, flying foxes and political farce
On a weekend rural communities suffered dangerous weather events, the government doubled down on coal
Trump to approve Keystone XL, Dakota pipelines – report
Trump will reportedly approve two highly controversial oil pipelines as old environmental battle lines are redrawn in the US
Tillerson backed by senate committee for US top diplomat role
Foreign relations committee splits down party lines to send former Exxon Mobil boss Rex Tillerson’s nomination before the full senate
‘We’ll pray for Trump’: Americans come together as president takes oath
As people from across the country confront Donald Trump’s presidency, people are finding solace and solidarity in their communities
Trump energy pick Perry promises to protect climate scientists
Former Texas governor says he will pursue “all of the above” energy strategy and disavows earlier call to eradicate the energy department
The new climate denial needs new responses
Republican cabinet nominees have been telling Democrats that they agree that the climate is changing. But their new language requires new questions
Trump’s EPA pick: climate science ‘subject to debate’
Commentary as Scott Pruitt – Donald Trump’s pick as EPA chief – faces his confirmation hearing on Capitol Hill. Follow us on twitter @ClimateHome and Facebook
VIDEO: Trump interior pick says climate is no hoax
Asked by Bernie Sanders if he agreed with Donald Trump about climate change, Ryan Zinke said “I don’t believe it is a hoax”
Exxon has ‘excellent future’ in Russia says ex-energy chief
Former Putin minister and CEO of Rosneft says renewed cooperation with US would open up “massive investment” in Arctic oil and gas
India to end coal imports in ‘next few years’
A 25% drop in imports in 2016 leads minister to declare independence from foreign coal
Obama sends $500m to UN climate fund
With the clock winding down on his presidency, Barack Obama signs over half a billion dollars to help poor countries fight climate change
Global sea ice at lowest area ever recorded
Scientists mystified by a sudden fall in sea ice around Antarctica, but said there was no evidence it was related to global warming
Trump threatens UK climate science, PM May told
Letter signed by 100 UK scientists says Republican plan to de-fund NASA would harm British interests