At landmark speech in Berlin US President says a “grim alternative” awaits the world if rising greenhouse gas emissions are not addressed
Leading mayors and county leaders in the USA have signed an agreement pledging to build more climate resilient towns and cities
France President says summit gives leaders a chance to map out plan to agree global emissions deal in 2015
Hopes rise for climate change progress after agreement by China to phase out one of the most potent greenhouse gases hydrofluorocarbons (HFCs)
Morning Summary: New storm barriers, flood walls, levies and sand dunes proposed for NYC in response to damage from Hurricane Sandy in 2012
Agreement to cut potent greenhouse gases must be welcomed, but not at expense of efforts at UN climate talks to achieve binding carbon dioxide deal
United States and China agreed on Saturday to cooperate to phase down the production and use of the potent greenhouse gas hydrofluorocarbons
Morning summary: Methane emissions from shale gas sites in USA pose serious risk to climate efforts says new report
Officials say issue could be a “highlight” of the nations’ relationship ahead of Xi and Obama’s first meeting
Efforts by the US to impose a voluntary global deal must be resisted, former UK climate ambassador John Ashton warns
A small sample of the one million comments received by the State Department sketches out the core arguments on both sides
US news broadcasters are hot on stories about the British royal family, but research shows they are still left cold by climate change
Car manufacturer Tesla repays its Department of Energy loan nine years early as Ernst Moniz says only 2% of its $34bn portfolio has resulted in losses
US, backed by the EU, suggests focusing on efficiency but unclear whether plan will displace tougher climate legislation for sector
Secretary of State says country’s response has been inadequate
31.8m people displaced by floods, storms and droughts in 2012, as more people lost their homes in the USA than Bangladesh
US Senator delivers stark warning to colleagues who believe God is responsible for climate change, not humans
UN talks this week aimed at cutting the climate impact of aviation and shipping but support from the US will be crucial
Despite more pleas this week for Canada to reconsider its position on climate change, the Government’s commitment to its tar sands oil resources is likely to win
Queen’s Speech confirms climate change will be discussed at forthcoming summit, despite reports UK had blocked issue from agenda