New poll shows more people than ever are set to vote Green, posing a challenge for front-runners Sadiq Khan and Zac Goldsmith

World Bank and other development banks pledge to scale up lending to help poor countries tackle the worst impacts of climate change

Environment Agency says it will not penalise companies that can comply with energy audit rules by end of January, as long as they have made some progress by original December deadline

European Investment Bank ditched reference to 2050 decarbonisation target, says NGO

Officials say poorly sited solar schemes fail to help environment or bring down costs, but Labour and Green Party call for urgent policy rethink

Government sets out grace period criteria for early closure of Renewables Obligation scheme

UPDATED: Two leading Green Deal and renewable energy installers call in administrators within hours of each other, leading to more than 1,000 job losses

OECD report says rich countries mobilised an average of $57bn to help poor countries tackle climate change since 2013

UPDATED: Deal aims to cut costs of offshore wind power by simplifying assembly process