Understand how alternative energy and renewable resources are changing our world, from geothermal to nuclear.
Spurred by hunger and subsequent anger, food riots and protests are breaking out in poor and wealthy countries across the globe.
Get the rundown on how hydroelectric power sources may be helping or harming our planet.
BETTER WAYS TO MAKE AND USE ELECTRICITY
Demand for oil goes down when all the energy-hungry people and countries start tightening their figurative belts.
Corn Belt advocates push ethanol as a green fuel, but the EPA mulls whether to consider its indirect emissions.
Millions of dollars in funding has been spent on an idea that may never work.
A report looks at the environmental benefits and drawbacks of wind power.
Video: Get this week's eco-tips from Carter Oosterhouse & Tichina Arnold.
Is "run-of-the-river" hydroelectric power greener than regular hydro?
Spain powers homes with energy from the sun.
Downpours may be the next source of renewable energy.
Do carbon offsets companies deliver what they promise?
A novel depicts one town's struggle after we deplete our petroleum reserves.
Closing your curtains will keep nosy neighbors out and your electric bill low.
Rechargeable batteries that last for thousands of charges.
This Danish electric car-charging network will involve thousands of charging stations built in parking lots and near homes by 2011.
Activist and author blogs about politics, energy and Earth's resources.
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Science journalist blogs about humans and other wildlife.