United Nations

Rich nations need to cut CO2 emissions 90 per cent, says national think-tank

Second suspension of official emission project verifier within a year highlights flaws in UN's flagship offsetting scheme

Separate study puts nation at bottom of rankings for climate change preparedness

Review argues funding of more than $500bn a year is needed to tackle global warming

Yvo de Boer closes Bonn talks with stark warning that the current pace of the Copenhagen negotiations remains far too slow

Chinese negotiator voices "unhappiness" at rich nations' reluctance to sign up to ambitious emissions targets

Pro-business and green camps unite to vote against broad cap-and-trade scheme

New UN figures show current targets for rich nations fall well short of those proposed by climate scientists

The gap between rich nations and emerging economies over carbon emissions targets is beginning to look unbridgeable

UN's top climate change official warns negotiators are running out of time to resolve rows over targets and clean tech financing