NEWS: Obama-linked Organizing for Action group calls on voters to fight back against Koch brother influence
NEWS: Space agency will monitor rising levels of CO2, the most prolific greenhouse gas blamed for global warming
NEWS: East Coast state targets 80% greenhouse gas emissions cut below 1990 levels by 2050
NEWS: Thermoelectric power including gas, coal and nuclear responsible for 40% of US water use
ANALYSIS: Campaigners in the US warn that fracking is seriously depleting or contaminating water supplies
NEWS: Using molten salt to store electricity offsets the high cost of solar thermal power, says report
ANALYSIS: New US proposals likely to be tip of new carbon cuts as country seeks to meet international targets
COMMENT: Obama’s emission cuts could be more ambitious, but it’s the political message from new EPA laws that’s significant
NEWS: Reaction from ministers, UN officials and NGOs as White House unveils plan to cut CO2 pollution
NEWS: Doubling of US natural gas exports may undermine Mexican wind as well as coal and fuel oil
NEWS: Business driving grocery giant’s green ambitions, says VP, revealing new push on energy intensity targets
NEWS: British scientist expresses his surprise when parts of IPCC text were ‘mutilated’ at April meeting in Berlin
ANALYSIS: US wind power data suggest a poor 2014, confounding industry forecasts
NEWS: New understanding of Greenland’s glaciers show more of them are below sea level, and may melt faster
ANALYSIS: The IPCC warned of rising sea levels. The collapse of Antarctic glaciers means it’s time to prepare
NEWS: Global sea level rise figures may have to be revised upwards say scientists, as pace of melt increases
NEWS: Prestigious American university pledges to divest its $18.7bn endowment fund from coal industry
NEWS: Climate change already having visible impacts across US, and temperatures could rise another 2.2C in coming decades
ANALYSIS: Sun power can now keep electricity turbines running however cloudy it may be, both night and day
NEWS: Waiting for extreme weather events to prompt climate action could lead to “decades” of policy delay, say scientists