Joining the Energy Underground: Residential Geothermal Power Systems
Dear EarthTalk: How are heating, cooling and electricity produced by geothermal energy? I don’t understand how it works. --Delano Stewart, Wyandanch, NY [More]

Colorado Rocky Mountain School - Where Recycling is a Way of Life For These High School Students
Meaningful work is a way of life at the Colorado Rocky Mountain School. This independent day and boarding high school was founded in 1953 based on this principal.

Ocean Losing Its Appetite for Carbon
The world's oceans, which normally gobble up carbon dioxide, are getting stuffed to the gills, according to the most thorough study to date of human-made carbon in the seas.

The Future of Trains
As the United States gears up for Thanksgiving and its busiest travel week of the year, might high-speed trains get people where they're going faster in the near future? [More]

The naked truth about the F-word and climate
F-gases, or HFCs, are the super greenhouse gases that cool our drinks, our cars, and our buildings. They have a bigger effect on our climate than carbon dioxide and they are a growing threat. Sign the petition from Greenpeace to phase them out by...