Governments and the aviation industry have welcomed new proposed aircraft emissions standards - which rather suggests that the new rules don’t go far enough.
Australia’s greenhouse emissions are once again rising, after a decade of consistent declines. But the right policies are already in place to turn things around - they just need to be ramped up.
How will the world actually deliver on the Paris climate ambition to hold global warming to no more than 1.5°C? It’s a tough scientific and technical challenge.
The Paris climate summit yielded a pact to reduce air pollutants that contribute to global warming but missed a chance to address the interlinked effects of agriculture and climate.
Australia’s new cap on emissions includes aspects of a “baseline and credit” emissions trading scheme. That’s cheaper for businesses, but means more regulation.
Much has been made of the domestic political roadblocks between US President Barack Obama and climate action. But by using existing treaties he can get around the hostile Congress and help cut global emissions.
Countries that drag their feet on climate action have fewer places to hide these days. Rules brought in at the 2014 Lima talks require them not just to set targets, but to publicly justify them too.
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?