© 2009 WGBH Educational Foundation. All Rights Reserved.

Adapted from FRONTLINE: "HEAT". Third party materials courtesy of American Coal Productions and KTXS. Funding for FRONTLINE is provided through the support of PBS viewers. Major funding for FRONTLINE is provided by The John D. and Catherine T. MacArthur Foundation. Additional funding is provided by the Park Foundation. Major funding for HEAT is provided by the FRONTLINE Journalism Fund, with a grant from Hannelore and Jeremy Grantham and the Grantham Foundation for the Protection of the Environment, and additional support from Scott Nathan and Laura DeBonis. Additional funding for HEAT is provided by The Kendeda Fund, the Nathan Cummings Foundation, and Wallace Genetic Foundation, Inc.