Open letter from 26 leading economists says President should drop US opposition to emissions trading

Social network data reveals US green energy sector surfed recession to grow 49 per cent, outperforming all other sectors

Shell, Tesco, Unilever and EDF among those calling on Osborne to demonstrate commitment to green economy

Competition to find cheaper components and systems as UK aims to build "world leading" industry

Coal-heavy country leaves businesses in limbo over post-2020 emissions targets

Joint letters to David Cameron and other European leaders warn scheme poses "intolerable" threat of retaliatory measures

Public sector bodies increasingly using digital mapping to re-route waste trucks, cutting costs, fuel use, and carbon emissions

Spectre of a trade war looms large as Beijing reportedly blocks purchase of 10 Airbus A380s as a retaliatory measure

Economic turmoil means government must concentrate on most effective technologies or risk derailing entire renewables industry

Ed Davey set to back 25 per cent cuts by 2020 as most cost-effective option at today's Environment Council meeting