President reverses changes to Endangered Species Act that allowed federal agencies to sideline environmental advice
Hillary Clinton offers admission to ease obstacles towards reaching agreement at climate change summit in Copenhagen
New figures show US carbon emissions will be 1.3 per cent lower than previously expected by 2013 as a result of stimulus package
New trains could reach speeds of 100 miles per hour
Nancy Sutley, head of the White House Council on Environmental Quality, talks to Joel Makower about how the federal stimulus package will be a boon for green businesses
Senior House Representatives launch new bill that requires deeper emission cuts than those proposed by Obama
Senior figures warn that the president may need at least another six months to win domestic support for any proposal
President says $129bn that has been allocated for environmental plans is off limits to Congress
Southern California Edison's facility one of two approved by the US energy department to investigate electric car performance
AT&T inks alliance with SmartSynch designed to make it easier for utilities to access smart meter data