Ed Davey says extreme weather events have “shifted the debate” on climate change in the US, with UK floods having similar effect
The majority of Americans want Congress and business to act on climate change, even if it comes with economic costs
Early submission to UN reveals White House support for flexible deal involving developed and developing nations
Over 100 athletes competing in Sochi this fortnight have signed a letter highlighting importance of UN’s 2015 climate change treaty
Comment: Natural disasters are set to become more common in a warming world, and politicians should take note says the IIED’s Saleemul Huq
Reports from Washington DC suggest Obama Administration has held series of meeting to discuss possible climate strategies
Current head of international negotiations says developing nations will need to deliver emission reduction plans by 2015
House of Representatives to question feasibility of clean coal as Republicans ramp up pressure ahead of midterms
Former Environment Secretary Lord Deben says national flood programmes have been neglected in past two decades
Presidents of France and USA issue statement ahead of summit to discuss economy, security and global warming
Scientists say evidence supports theory that exceptionally wet and stormy winter is caused at least in part by climate change
UK wave power project could be supplying 120,000 homes with carbon-free power by 2018, but will require govt backing
World leaders can expect a call from from the former New York Mayor unless they take urgent action on climate change
Speaking in London, Christine Lagarde says UN emissions deal and fossil fuel subsidies cut are now global priorities
Underlying trends indicate planet is steadily heating says World Meteorological Organisation chief Michel Jarraud
Mayors from around the world have gathered in Johannesburg to discuss urban solutions to tackling climate change
Economic growth and millions of jobs at risk if German leader does not stamp authority on negotiations say campaigners
Mayors of the world’s leading cities met in Johannesburg this week to discuss solutions to climate change
Fight against Keystone XL to intensify after government report says US-Canada pipeline won’t increase emissions
US Secretary of State tells security experts climate challenge requires “collective leadership”