Report by climate change panel says global warming is fuelling not only natural disasters, but potentially famine – and war

Lib Dem energy and climate change secretary speaks out on eve of publication of major UN report on environment

EU seeks to break Russian stranglehold on energy supplies – but US president says Europe must step up its own fracking

Sparse public data on onshore oil and gas drilling makes full extent of failures in hydrocarbon wells unknown, experts say

Environment secretary held high-level meeting at Cuadrilla's request with Environment Agency over regulation dispute

Oil giant bows to pressure from activists who want companies to acknowledge the changes wrought by government action

China's largest online travel agency has launched a 'haze-travel insurance package' for tourists to claim compensation for trips ruined by pollution

Scottish energy minister hits back after UK energy secretary claims independent Scotland would face higher energy bills

Letter to Guardian calling for regulator is signed by opponents of expansion as well as advocates of growth at London airport

Quarrels over science and policy are undermining the fight against climate change