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The EPA's proposal sets a 30 percent decrease in power plant carbon emissions by 2030.
China burns as much coal as the rest of the world combined. But it also leads in clean tech, and has a national climate change policy in place. A look at how the world is tackling climate change--with or without us.
We get the forecast for domestic climate change policy in the months ahead.
This week, President Bush announced a new set of national goals related to climate change and called for a stop to growth in greenhouse gas emissions by 2025. We'll talk about the goals proposed by the White House, and why some say they don't go far enoug
Scientists say carbon dioxide levels in our atmosphere are shooting up faster than anyone predicted. What does that mean for climate change -- and for plans to limit carbon emissions?
Doctor Jordan Metzl says specific cardio and strength training regimens can trea...
Exercise scientists Tamara Hew-Butler and Greg Whyte talk about how the body cha...
Can regular mental exercise help slow down the progress of dementia?
Can exercise help keep aging brains healthy?
New York Times science writer William Broad’s book investigates popular health c...
Could popping a pill turn a couch potato into a long-distance runner?