USA

Air Resources Board approves target requiring utilities to source 33 per cent of power from renewable sources by 2020

Rare outbreak of bipartisanship boosts prospects for Renewable Energy Standard bill

Report accuses Canada of lagging far behind the US in renewable energy investment

Senate candidates and top business leaders clash over controversial Prop 23 attempt to roll back state's climate change legislation

Joint research programme offers funding to support development of electric vehicles and clean coal technology

Senator Harry Reid believes he could secure Republican support for bill containing Renewable Electricity Standard

New bill edges US state towards creation of renewables-ready grid

Republicans spike cap and trade and renewable energy standard

Oil firms and anti-tax groups secure ballot that could suspend California's pioneering environmental legislation

No decision on whether or not to move forward with Kerry-Lieberman bill