Claculate your impact - and find out what you can do to lower it!

How do we change the world? Through innovation and invention? Charity? Volunteerism? Ask a hundred people, and you're likely to get a hundred different answers.

NBC affiliates across the country will begin airing "Green Reports" with their early evening news.The "Green Reports" will help viewers learn ways they can help protect our environment and live healthier lifestyles.For more than 30 years, Earthjustice has

It's both primitive and high-tech all at once. It's called an ecovillage-based on the belief it actually "is" easy being green. Fox News at an ecovillage in Missouri to see whether it's a nice place to visit or if you'd want to live there.

The delay in autumnal leaf coloration and leaf fall in trees is caused by rising levels of carbon dioxide (CO2) in the atmosphere and not by increased global temperatures.

Future ethanol: Environmentalists and energy-security advocates hope ethanol can be made from agricultural waste, such as these corn cobs piled high on this South Dakota farm. Dirk Lammers/AP