(AP) -- There's growing worry about global warming, but how much of it is the work of that power plant just outside town? And if Congress limits heat-trapping greenhouse gases, will it affect utility and electric bills? And who's the biggest corporate culprit when it comes to climate change?
Content from The Associated Press expires 15 days after original publication date. For more information about The Associated Press, please visit www.ap.org .
Explore further:
Forest Service study finds urban trees removing fine particulate air pollution, saving lives
