Barack Obama

Experts believe reports of US carbon market death have been greatly exaggerated

EPA report finds rapid improvement in fuel economy has delivered consistent fall in emissions over last six years

Norwegian Prime Minister concedes that Republican control of Congress could have a negative impact on upcoming UN climate summit

President puts himself on collision course with newly elected Republicans who "ignore the science" on climate change

Democrats lose control of the House of Representatives, providing Republicans with the power to block new environmental and energy legislation

Democrats lose control of the House of Representatives, providing Republicans with the power to block new environmental and energy legislation

Energy Secretary expected to announce plan to install solar hot water and solar PV panels at 1600 Pennsylvania Avenue

Senators Bingaman and Snowe team up to unveil Advanced Energy Tax Incentives Act

President plans to revitalise stalled climate change agenda, saying clean energy policy will be delivered "in chunks"

White House commission finds that administration lost public trust and may have sabotaged clean-up operations