Decentralised combined heat and power plants to deliver a quarter of London's power by 2025
Mayor says he will contribute £15,000 to local authorities' planned legal challenge, if Heathrow expansion is given green light
Industry insists outlook remains upbeat, but credit crunch and rising construction bills are prompting growing numbers of developers to review projects
London Mayor claims increasing London's public transport capacity holds key to driving economic growth and combating climate change
Transport for London providing £550,000 of funding to help drive adoption of car clubs
Abu Dhabi investment fund takes 20 per cent stake in world's largest offshore wind farm project as part of wide-reaching partnership with E.ON
Proposed airport in Thames estuary would cut noise and air pollution, and perhaps even promote rail travel
New strategy expected to focus on the carbon savings that can be delivered through recycling
Green groups welcome move but say Boris Johnson must focus efforts on cutting carbon emissions
Mayor Boris may have backed away from congestion charging, but the threat of EU air quality fines could force a rethink