Coffee chain says £1 cups will encourage customers to cut waste and save them money on every order

Connie Hedegaard's attempts to introduce longer-term reforms will face fierce opposition from a powerful business lobby

75 sports champions warn of warmer winters in latest effort by environmental campaigners to urge president to act on climate

Global warming will make it difficult to raise grapes in traditional wine country, but will shift production to other regions

Researchers say a new way to estimate the size and value of catches shows the extent of looting of Africa

Country faces more frequent and more severe weather events if it fails to make deep and swift cuts to carbon emissions

Prof John Beddington affirmed importance of atomic power to UK at the launch of long-term nuclear strategy

Party negotiating to reopen green energy deal in attempt to introduce carbon reduction targets for energy sector

World leaders should set six new sustainable development goals to achieve global prosperity, scientists argue

Energy minister John Hayes does not say whether handouts should come from taxpayer or fracking companies