President-elect Barack Obama's pick to head the U.S. Environmental Protection Agency pledged today that decisions at the agency will be based on science and the law and not politics, The Associated Press reported. Lisa Jackson's statement, prepared for her Senate confirmation hearing, was the clearest signal yet that the Obama administration plans to take the agency in a different direction. The Senate Committee on Environment and Public Works is also considering the nomination of Nancy Sutley, Obama's choice to chair the White House Council on Environmental Quality. Sutley also vowed to rely on science as she helped to «move the nation to greater reliance on clean energy and increase energy security.»