Mike Barry says coalition has shifted goalposts over environment, and urges plastic bag charge

Scientists analysing climate models warn we should expect high temperature rises – meaning more extreme weather, sooner

Tory MPs express concern over outpouring of anti-green sentiment and attacks on renewables from within government

Emissions targets will be broken if reliance on gas rises in line with new forecasts, say critics

Mayor's endorsement could turn climate change into a serious election issue – and it might even embolden Republicans

Bill Clinton and Al Gore among those calling for fresh focus on issue that neither candidate mentioned in televised debates

Renewables will provide enough power for one in 10 British homes by 2015 if current growth rates continue

MPs and environmental groups say appointment of the climate sceptic to Commons energy committee is 'deeply worrying'

The company says it is waiting for government reassurances before going ahead with a nuclear construction programme

Sacked energy minister warns Britain must not 'bet the farm' on shale gas extraction