Major real estate owners, including Hammerson, The Crown Estate and Transport for London, reveal how they have boosted the energy efficiency of their portfolios by a quarter since 2011
Lead negotiator warns that if UK quits single market a system of checks will be needed to ensure 'compliance with European standards', including environmental rules
Big name retailers including Harrods, Selfridges and Harvey Nichols score 'zero trees' on this year's timber scorecard from WWF
PM will use summit meeting with US president to say climate change agreement doesn't need renegotiation
Ahead of G20 Summit, new study predicts wind and solar to outcompete fossil fuels in all of the world's major economies
Defra must now publish its final air quality plan by 31 July, but final document could still be open to future legal challenge
Anaerobic digestion capacity has grown 18 per cent over the last year, but with more support from government it could get bigger, industry claims
CEO declares the 'end of the solely combustion engine-powered car' as automaker promises all new cars will be fully electric, plug-in hybrid or 'mild hybrid' by 2019
Four in 10 homeowners say they want solar panels and/or battery storage systems in their home by 2020, although understanding of how technology works remains low
Tech start-up agrees cooperation deal with Microsoft Sweden to launch platform country by country from 2018