An American climate scientist has started a petition -- he hopes that by Earth Day, 2014, a billion humans will have signed on to act against climate change. ->

Bike sharing is convenient, fun, and cheap. A new software program aims to give cash back to bikers.

The country added an area of forest bigger than twice the size of Connecticut in the last decade. But a global assessment of Earth's forests wasn't all good news.

According to this article from the Telegraph, all of the transportation associated with the climate change meetings in Copenhagen will emit as much CO2 as a city the size of the UK's Middlesbrough would over the same period of time. For those of us across the pond, Middlesbrough is about the same s...

More gyms are using specially designed equipment to capture the energy you create while pedaling, and turn it into useful electricity.

Back-up species play a critical role in keeping populations from crashing.

A new form of highly-compressed carbon may be even stronger than diamonds, since it may be able to withstand extreme pressure from all directions.

An analysis of 74 studies on the soils in fields under organic or conventional farming practices, found that over time the carbon content in the organic fields had significantly increased.