NEWS: US president uses State of Union speech to mock climate sceptics and says green policies will help most vulnerable in society
BLOG: How would the State of the Union address look if Obama turned environmentalist? 350’s Jamie Henn conducts a rewrite
NEWS: Prime minister seeks solar solidarity ahead of US president Barack Obama’s visit
NEWS: Record high temperatures in December confirmed 2014 as the hottest year on record, NASA and NOAA reveal
NEWS: Brussels leaders will meet on Monday to discuss strategy for raising global climate ambition ahead of UN talks
NEWS: While the authorities dump or burn rubbish, two businnesses in India’s Silicon Valley are using waste plastic to build roads
NEWS: The White House’s first ever methane rules for the oil and gas industry would help US curb global warming
NEWS: Rivals set out visions for a green Winter Olympics in 2022 as sustainable development rises up agenda
NEWS: Efforts to solve China’s water crisis − exacerbated by economic growth, climate change and a rising population – are having opposite effect
NEWS: Senator Bernie Sanders has tabled amendment to Keystone bill to accept the scientific consensus on climate change
NEWS: Demand for jewellery and booming gold prices poses threat to diverse tropical forests, study finds
NEWS: Massachusetts State College Building Authority issues US$94 million bond for plans branded “pathetic” by watchdog
NEWS: Allowances traded at US$7-8 a tonne, a similar price to Europe’s emissions trading system
NEWS: Washington and Delhi likely to agree pact on renewables and HFCs, but little chance of any major climate deal say insiders
NEWS: An international team of researchers will boost food security for 300 million people in Nepal, India and Bangladesh
NEWS: It is worth taking more expensive measures to curb emissions, say scientists, to avoid hit to economic growth
NEWS: Lead US envoy says future of global climate governance is at stake during climate negotiations in 2015
NEWS: Campaigner Priya Pillai was due to brief London MPs on proposed coal mine in Mahan forest
NEWS: California university was the wealthiest to cut ties with coal companies last May; 295 academics want oil and gas to go next
NEWS: A slumping oil price did not dampen enthusiasm for clean energy in 2014, as data shows global investment grew 16%