Judge rules Viking project should not have been given planning consent as ministers failed to follow EU birds directive

Co-author of study says UK must impose better environmental regulation than US if it pursues shale gas extraction

Owen Paterson, secretary of state for environment, food and rural affairs, says effects of global warming not all negative

Food and Agriculture Organisation says farmers can slash emissions merely by adopting better methods

Call to 'stop dithering about fossil fuel cuts' as expert panel warns entire globe is affected

EPA asserted authority to move forward without new laws from Congress at hearing where contrarian views were on display

Efficiency-minded investors could make huge amounts of low-cost capital available to tackle climate change

Members accept limited role for atomic power at Glasgow conference in historic reversal of policy

Energy department policy makes district councils lead authority on locating waste dumps, which Cumbria county council says abandons big society

Lord Rees appeals for research into geo-engineering technologies in case efforts to curb carbon emissions fail