Deputy mayor outlines plan to showcase 20 fuel cell-powered taxis on the capital's roads by 2012
Vote expected on Thursday on Murkowski's plan to strip the EPA of its right to regulate greenhouse gas emissions
As BP crisis continues, Russian president proposes international insurance scheme to handle environmental risks
Environment watchdog becomes first government-backed body to call a halt to domestic flights
Chris Huhne joins advisory group on climate financing as Norwegian prime minister takes up post as co-chair
As EU gears up to overhaul legislation, new environment secretary says she is pro-GM
From gas-powered wind turbines to the UN's empty coffers, we run down the week's top stories
Report shows EU has already cut carbon emissions by 11 per cent since 1990
Climate Commissioner hits back at suggestion pessimism is undermining international talks
EU insists it will pursue legal action unless London takes urgent steps to tackle poor air quality