EU says mandatory carbon emissions cuts should be set for all countries, whereas US wants individual countries to be free to adjust the scale and pace of reductions

Hopes rise for global warming deal after US-China carbon commitments inject much-needed momentum into Peru talks

Time is running out for agreeing legal framework for emissions cuts, EU official warns

Todd Stern claims the world will have to forgo developing reserves of oil, coal and gas in order to solve global warming

World Bank will only fund coal projects in cases of ‘extreme need’ due to the risk climate change poses to ending world poverty, says Jim Yong Kim

Energy secretary Ed Davey warns against 'little Englander' approach as donation to UN's Green Climate Fund announced

$10bn pledged for Green Climate Fund to help countries cope with global warming falls short of original commitment, say UN observers

Former US energy chief and Nobel physicist says UK plan to build various types of reactors is expensive and time-consuming

Barack Obama aims for reduction of a quarter or more by 2025, while Xi Jinping sets goal for emissions to fall after 2030

Airport commission says proposals will cost up to £3.4bn more than estimated, meaning higher fares for passengers are likely