Copenhagen

The Guardian asks leading climate change experts for their assessment of the Copenhagen deal

Officials insist emerging nations are not to blame for summit's failure to deliver more ambitious emissions targets

Climate change negotiations should not be held to ransom by small number of countries, says PM

Chaotic? Yes. Frustrating? Certainly. But for green businesses the Copenhagen Summit was more success than failure

In the end it came down to frantic horse trading between exhausted politicians

Responses to Copenhagen deal range from cautious optimism to outright despair

It was not the ambitious and binding agreement business leaders had been hoping for, but nor was it the disaster NGOs claim

Industrialised nations accuse China of blocking any attempt to include global emission targets in final accord

As world leaders promise significant action next year, summit ends in angry exchanges and failure to secure unanimous support for final deal

Brown defends compromise agreement; plans emerge for 2010 climate change meetings