Although forests help slow global warming, storing enough carbon to offset about 16 percent of the nation's fossil fuel emissions, wildfires can produce massive amounts of carbon dioxide.
Farmer/lecturer Joel Salatin champions 'moral farming' as a better way to raise food. 'What is a moral way to raise a chicken?' he asks.
Foam insulation interests a homeowner in the midst of a home restoration project. It costs more than fiberglass, but what are its advantages?
California has become the first state to mandate energy-efficiency standards for TV sets. These new regulations will affect all residents.
How much are coral reefs worth? Economists put a price tag on their benefits and say they're valuable.
Should you install a closed-loop or open-loop geothermal heating and cooling system? The advantages of closed-loop can save money.
Water from the Zipingpu Reservoir in China stressed two nearby faults in ways that hastened the 2008 Wenchuan earthquake by tens to hundreds of years, scientists say.
When cigarette butts become litter, they have a negative impact on the environment. The filters are made of a plastic that can take up to 10 years to decompose.
Geothermal heating and cooling systems come in closed-loop and open-loop types. Which is best?
As the world gets warmer, strategies for helping wildlife adapt.
A warmer world will have adverse effects on wildlife. We can help save animals, but it will take savvier approaches, scientists say.
Read all about green, futuristic ideas for cars, solar power from space, and high-altitude wind power.