New legislation to force fuel suppliers to provide more biofuels, hydrogen and electric ccharging stations
Wal-Mart and Whole Foods catch solar bug with plans to roll out solar panels at a large number of sites nationwide
New figures show US carbon emissions will be 1.3 per cent lower than previously expected by 2013 as a result of stimulus package
State of Emergency ruling followed by water bill price hikes and new restricted use measures as drought continues to bite
Miami aims for grid that is "more like the internet than an electric network "
Solar panel financing plan launched in San Diego is attracting interest from across the US
Landmark ruling on whether carbon emissions can be regulated under the Clean Air Act could be just weeks away
Key players on both sides of Atlantic call for major new initiatives to accelerate the development of greener homes
Lithium-ion specialist follows series of supply deals with $169m in funding and tax breaks
Outlandish schemes to fight global warming prove a hot topic for the president's science adviser