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
Late night in store for Copenhagen negotiators as African leaders insist they are willing to scupper talks and China refuses to budge on carbon monitoring