It's tempting to believe technology, both known and yet-to-be-invented, will avert a future global warming disaster (perhaps without much sacrifice on our part). Reporter Dan Olson deconstructs our technological faith, and looks at how far the promise of human ingenuity will get us. (02/15/2007)

Minneapolis has excellent "green" credentials. But even people is an eco-friendly city can get discouraged when looking at the big picture of waste and energy use. (02/16/2007)

In the U.S., the world's largest producer of greenhouse gases, one third of us say we think global warming is a serious concern; just about half of us say we personally worry about it to some extent. Maybe the real challenge to get Americans acting green runs as deep as our culture. (02/16/2007)

You know, kids today have lots of ideas and energy for saving the planet. But what they don't have is something many people now in their 20s grew up with -- an environmental cartoon superhero to lead the way. (02/16/2007)