US President Barack Obama's new climate plan aims to cut greenhouse emissions from the nation's coal-dominated power sector by 32% by 2030. Will it get through, and how will it affect this year's climate talks?
The Renewable Energy Target now includes wood waste from forestry. But a more sustainable use of Australia's native forests would be to leave them alone and earn carbon credits from the avoided emissions.
Australia's government boasts of being one of the few nations to hit its Kyoto emissions target. But is it any wonder, when the Howard government successfully lobbied to make it almost unmissably easy?
China's formal climate target shows that the world's largest greenhouse emitter is determined to green its economy on an unprecedented scale - and that it can bring the rest of the world along for the ride.
The Australian Climate Roundtable unites business, environmental and social groups in calling for a strong climate policy. This unprecedented show of unity might even break down Canberra's climate stalemate.
For the first time, a court has ordered a government to strengthen its climate targets. It's a watershed, not just for the Netherlands but potentially for countries such as Australia whose targets have been criticised.
Greenhouse emissions from the aviation industry are still largely unregulated. The prospect of regulations for US flights sounds like progress, but it won't happen without an elusive international consensus.
Amid talk of paths to surplus and investing in infrastructure, both sides of politics seem to have forgotten Australia's longstanding responsibility to govern sustainably, and not just for the economy.
Australia's emissions target will inevitably be compared with other leading nations. But a fair target should be calculated not on a basis of comparison, but on the world's shared 2-degree climate goal.
Federal environment minister Greg Hunt has hailed the first round of Emissions Reduction Fund auctions as a "stunning result". But extrapolating the numbers puts Australia behind on its carbon targets.