The Associated Press reports, "Democrats Barack Obama [3] and Hillary Clinton [4] are walking a delicate line as they promise to aggressively tackle global warming [5] while trying to assure voters that they continue to believe in the future of coal," the energy source responsible for "nearly 2 billion tons of carbon dioxide, the leading greenhouse gas, each year. ... 'They keep using the term clean coal [6]. They absolutely are pandering the coal industry's propaganda; there's no such animal as clean coal," said Brent Blackwelder, president of the environmental group Friends of the Earth [7]. AP notes that Obama and Clinton's love affair with Big Coal pleases the American Coalition for Clean Coal Electricity [8], a coal industry front group [9] formed on April 17 by the merger of Americans for Balanced Energy Choices [10] and the Center for Energy and Economic Development [11].