The US government is being sued by teenagers who say it hasn't done enough to protect future generations from climate change. The case raises the crucial question of how we weigh up society's future rights.
For more than a decade the coal industry's favoured response to climate change was carbon capture and storage, or CCS. CCS is still the main defence, but the absence of functioning projects is making it ever more threadbare.
Ahead of meetings at the end of this year in Paris, countries will submit draft contributions for a global climate deal. The goal: reducing greenhouse gases beyond 2020, and ultimately keeping global warming below 2C.
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?
Can the government tell its clean energy finance body what to invest in? Recent news that the Clean Energy Finance Corporation will be banned from investing in wind farms and small-scale solar suggest that the government is trying to do just that.