Last Updated: Monday, February 17, 2014, 07:07
US investigators have been taking samples at a New Mexico underground nuclear waste site where airborne radiation was detected, though authorities stressed they had found no contamination.
Last Updated: Tuesday, October 22, 2013, 09:35
The US dropped its emission of carbon dioxide by 3.8 percent last year, the second biggest drop since 1990, US Department of Energy said in a statement.
Last Updated: Thursday, September 19, 2013, 12:49
Two workers who were exposed to radiation have sued the US Department of Energy, claiming they were wrongly denied documentation about the accident.
Last Updated: Friday, May 17, 2013, 08:10
Physicist Ernest Moniz is a professor at the Massachusetts Institute of Technology.
Last Updated: Tuesday, January 08, 2013, 13:22
Chemists have engineered blue-green algae to grow chemical precursors for fuels and plastics, which is the first step in replacing fossil fuels as raw materials for the chemical industry.
Last Updated: Wednesday, May 16, 2012, 23:06
Arunava Majumdar has resigned after the US Senate did not confirm President Barack Obama`s proposal to elevate him.
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