"The U.S. Department of Energy said on Monday it has awarded $27.6 million of funding to evaluate the potential risks of storing carbon dioxide underground, which is seen as a way to control global warming."
"COLUMBIA, S.C. -- State-owned utility Santee Cooper decided Monday to drop plans for a controversial coal-fired power plant in South Carolina, a move lauded by environmental groups that had criticized the facility."
"A state board voted unanimously Thursday to approve an air quality permit for a $10 billion oil refinery that Hyperion Resources wants to build in southeastern South Dakota."
"Amaranth Advisors, a hedge fund that collapsed in 2006, agreed to pay $7.5 million to settle accusations from regulators that it tried to manipulate natural gas futures."
The new Sierra Suntower in Southern California's Antelope Valley uses 24,000 mirrors to concentrate light onto a tower that generates steam -- and enough electricty to power 4,000 local homes.