Dueling Senate Bills to Block EPA CO2 Regs

Living on Earth
The World
Senate Republicans want to kill the EPA's authority to curb greenhouse gas emissions under the Clean Air Act, but a Democrat's proposal to put it on hold might have a better chance of passing. Living on Earth's Mitra Taj reports on West Virginia Senator Jay Rockefeller's plan to delay climate change regulations for two years, and how the White House might respond.
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