Sam Eaton is an independent radio and television journalist. His reporting on complex environmental issues from climate change to population growth has taken him all over the United States and the world.
British business mogul Richard Branson today pledged $3 billion to combat global warming over the next decade: 100% of the profits from Virgin's transportation and airline sectors. But there might be motive besides saving the planet, Sam Eaton reports.
Xcel Energy plans to build a clean-coal power plant to capture its CO2 emissions. It's hailed as a breakthrough in addressing global warming — but Colorado ratepayers may be stuck with a billion dollar bill. Sam Eaton looks at clean energy's next big hurdle: the tab.