Earth Day's Biggest Challenge Yet

One of the planet's most pressing problems -- global warming -- looks to be one of its most intractable. And that is proving frustrating to would-be activists... Ask Michael Charney about the clothesline across his living room or Seth Riney about his hybrid-car limo service or Melanie Aron about her congregation's solar panels. They all give the same explanation: 'Global warming.'...Many see in climate change a problem so vast and complex that - in the absence of international treaties to cut emissions - individual actions may seem irrelevant. Yet global warming 'is not primarily a scientific problem,' Dr. Jamieson says. 'It is an ethical and political problem concerning individual values.' "

Thanks to Chris Steins