Don't Exhale:"EPA Expected to Declare Carbon Dioxide a Dangerous Pollutant"
Don't exhale.That advice may need heeding if the Environmental Protection Agency declares carbon dioxide and five other greenhouse gases dangerous pollutants, a move-expected in the next couple weeks-that would require the federal government to impose new rules limiting emissions.But some skeptics say regulating carbon dioxide, a byproduct of burning fossil fuels, may be a difficult task, especially since people emit carbon dioxide with every breath...