The Salwen family downsized their Atlanta house and donated half of the proceeds from the sale to hunger relief projects in Africa.

New study shows that total emissions would be lower if lawns did not exist.

My Emissions Exchange just sold its first carbon credit on behalf of the Wilsons, a family in Harrisburg, Penn.

Program requires companies to report annually on their carbon footprint and to have practices certified, independently audited.

Digital media installation depicts the physical manifestation of carbon emissions through three-story cubes that mirror the average person's carbon footprint.

A large number of imports raises Hong Kong's carbon footprint per capita to 29 tonnes per year.

Eco-activists in 9 cities are taking to the streets today to demand strong action to combat climate change.

Advice columnist Matt Hickman offers alternatives to air travel during the holidays.

Two art projects attempt to put shape (and color) to that invisible foe -- carbon dioxide.

NBC Universal's 'green' campaign has largely focused on off-camera issues like making company facilities more eco-friendly, but is now urging green issues be written into scripts.