USA

New mandatory Calgreen building code will ensure new buildings improve energy efficiency, cut waste to landfill and curb water use

Domestic producers of corn-based ethanol warn new sustainability requirements will price them out of the market

Government report warns that economic recovery will result in increased carbon emissions, making it tougher for administration to hit 2020 target

Row over US climate change legislation heats up as Republican Senator attempts to block EPA's right to regulate carbon emissions

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

Major transmission project gets go-ahead in order to access new renewable energy sources

Reports claim bilateral meeting between Obama and Wen has raised hopes for a deal

Negotiations back underway as Danish hosts signal that talks should proceed based on UN draft texts

Engineering giant reports sales of green products in China grew 50 per cent during first nine months of the year

Brinkmanship over financial commitments puts post-2012 funding plans at risk