EU insists it will pursue legal action unless London takes urgent steps to tackle poor air quality
Flagship £270m plant to supply up to 150 million litres of water a day
Transport for London lauches consultation to scrap the Western Extension of the capital's congestion charge zone
Mayor says next generation London bus will be 40 per cent more fuel efficient than conventional diesel double-deckers
Waste and Recycling Board unveils plan to provide funding for 20 flagship waste initiatives
Representatives of more than 60 nations gathering in London to discuss global measures to improve biodiversity protection
More than 25,000 charging points to be installed across London by 2015
Consortium inks tranche of megadeals, as Ofgem edges towards awarding offshore wind farm connection contracts
Green Party warns London may have to impose traffic-free days in some areas to avoid huge fines
New strategy aimed at winning over likely incoming Conservative administration