Copenhagen

Nation ranks as the world's ninth-largest polluter, with China reigning as No 1

But Bangkok talks end with deadlock over financing and targets unresolved

Norway becomes first rich nation to meet developing world demands for 40 per cent cut in emissions by 2020

Nation to seek funding and technology at Copenhagen talks to help meet new greenhouse gas target

China and US clash over US plan for new legal framework that would allow countries to set their own emissions targets

Industrialised countries' carbon targets could amount to as little as a 10 per cent cut in emissions by 2020, according to new study

Air New Zealand boss brands EU emission trading scheme a "money-grabbing" tactic and criticises Copenhagen's "bureaucratic circus"

Global carbon emissions expected to fall three per cent this year, providing leaders with window of opportunity to deliver transition to clean energy

Desire to replace Kyoto protocol with targets not tied to a global cap is dangerous, according to developing nations

White House official admits it is highly unlikely climate bill will pass before December