UN climate chief quotes Nelson Mandela in opening address: "It always seems impossible until it is done"

US and Saudi negotiators fail to adopt framework for $100bn Green Climate Fund, one of the few areas of prior agreement

Low cost options to reduce particles could save lives, protect crops, and limit global temperature rise, report says

Sainsbury's chief and audience members take energy secretary to task for putting jobs and investment at risk

"It may be that aviation is the place we use fossil fuels," Lord Adair Turner tells London conference

Analysts say record lows could worsen if Eurozone debt crisis escalates

Durban must provide business with sufficient clarity to invest in green technologies, says energy secretary

Chair of Energy and Climate Committee says the tax could be used to encourage compliance with EU efforts to cut aviation emissions

Industry wants government to offer clearer guidance on extent businesses can participate in Green Deal scheme

Energy efficiency programme to cut carbon and boost jobs, says Energy Secretary