From the August 3 edition of CBS Evening News With Scott Pelley:
PELLEY: For the first time, the federal government will restrict greenhouse gases from power plants. The president announced today that in 15 years plants must cut emissions 32 percent, and 28 percent of the electricity in this country must come from sources such as wind and solar. More than a thousand U.S. power stations fueled by coal will face major changes, and that industry is suing. Because this is an executive action and not a law, a future president could change these rules.