As new report reveals more than 6,000 firms now want the US climate bill to pass, key Republican senator refuses to restore his support for the legislation

Former prime minister appointed as senior adviser to venture capital firm Khosla Ventures

China's largest power producer signs agreements to purchase 1.8GW of wind energy capacity

Seven out of 10 C-level execs at billion dollar firms plan to increase climate-related investments over the next two years, despite uncertain regulatory environment

Regulator announces plan to provide incentives for renewable energy generators through REC scheme

But concern over climate change is also slipping, even as global average temperatures hit record levels

Australia may have ditched its planned emissions trading scheme, but New Zealand prime minister John Key today confirmed the country will launch its scheme in July

New action plans to tackle the 88 million tones of biodegradable waste produced each year

"The renewables industry will come of age under this Government"

From Boris' green buses to Cornwall's low carbon innovations, we run down the top stories from the past week