United Nations

As Mexico becomes first major emerging economy to set emissions targets, EU leaders insist they remain hopeful climate deal can be done

Developing countries should not be technology testing ground, UN officials decide

EU delegates in Poznan claim the continent will go virtually zero carbon by 2050 if China and India sign up to binding emission reduction deal

High uptake of CDM projects and developed countries' lax targets will cause drop in 2009

Negotiators will debate whether technology is developed enough to be included in carbon credit schemes

China, India, Brazil and coalition of island states all warn that emission targets proposed by industrialised countries do not go far enough

As talks to improve the UN's controversial carbon offset scheme kick off, Det Norske Veritas has been suspended from checking emission reduction projects in developing countries

But Senator insists US is "back in a position of participation, of respecting views and having real discussions"

Interest in individual behaviour change is waning, as voters worldwide demand political and business leaders take the initiative

As Obama declines invitation to attend forthcoming UN climate conference new data suggests global emissions have risen since 2000