Nations will be asked to sign up for 10 goals and promise to build green economies at this summer's earth summit

In an open letter defending a controversial project, Canada's natural resources minister accuses a pipeline's opponents of colluding with 'radicals' and 'jet-setting celebrities'

Janez Potočnik, European Union commissoner for green affairs, says unless habits change scarcity could see prices spike

Prediction using unique calculator challenges view that sustainable energy means higher costs

Scheme to make 14m UK homes more energy efficient will only reach 2-3m households, Committee on Climate Change says

Opponents will increase pressure on ministers by targeting key constituencies

Overall sales of 'ethical' goods and services – from produce to transport and funerals – rose by nine per cent despite decline in organic food, according to the Co-operative

Rich economies disadvantage green economy by giving tax breaks, loans and other subsidies to the fossil fuel industry

Environmental centrepiece of government policy risks 'pork-barrel politics' and financial ineffectiveness, critics fear

Multibillion pound plant at Sellafield would convert UK's nuclear power plant residue into fuel