Climate 411

Easy Recycling of Compact Fluorescent Light Bulbs

Sheryl CanterThis post is by Sheryl Canter, an online writer and editorial manager at Environmental Defense Fund.

Compact fluorescent light bulbs (CFLs) use 75 percent less electricity than incandescent light bulbs for the same amount of light. (For why, see Bill’s post "Why Switch to Compact Fluorescents".) But some people fear CFLs because of the tiny amount of mercury they contain. The risk from a broken CFL is extremely small, but CFLs should be disposed of properly so landfills aren’t polluted. Sealing used bulbs in plastic bags before placing them in the trash can slow the release of mercury if the bulb breaks. But recycling is ideal.

The problem, until now, has been that recycling CFLs was inconvenient for post people. That’s about to change, thanks to Home Depot. The New York Times reported this week that Home Depot will offer CFL recycling at all of its nearly 2000 U.S. stores. That puts 75 percent of Americans within 10 miles of a CFL recycling location.

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Drilling for More Oil Is Not the Solution

Sheryl CanterThis post is by Sheryl Canter, an online writer and editorial manager at Environmental Defense Fund.

Gas prices are sky high, as everybody knows, and the main reason is increased demand. But the solution is not to resume offshore drilling in the U.S., as the current administration suggests.

Environmental Defense Fund President Fred Krupp discussed this issue in a PBS interview last week with Charlie Rose, and again in a guest post on Grist. Here’s an excerpt from Grist:

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Electric Waves: Power from the Ocean

Miriam HornThis post is by Miriam Horn, a writer at Environmental Defense Fund and co-author of the New York Times bestseller, Earth: The Sequel. It’s part of a video series on new energy technologies, Unleash the Future.


1. Introduction (YouTube)
2. Solar
3. Biofuels
4. Geothermal
5. Wave


Almost every renewable energy resource begins with the Sun. Wave power is a third conversion of solar energy. The Sun creates the temperature differential that produces wind, and wind, in turn, produces ocean waves. Inventor Alla Weinstein found a way to convert the up-and-down motion of waves into electricity.

Take a look at my short video on wave power to learn more.

[kml_flashembed movie="http://www.youtube.com/v/74IVv3ocUGY" width="425" height="350" wmode="transparent" /]

If you have any questions or comments on wave energy, please post them here. I’ll do my best to answer.

Posted in Energy / Read 1 Response

Arctic Heat: Power from the Earth

Miriam HornThis post is by Miriam Horn, a writer at Environmental Defense Fund and co-author of the New York Times bestseller, Earth: The Sequel. It’s part of a video series on new energy technologies, Unleash the Future.


1. Introduction (YouTube)
2. Solar
3. Biofuels
4. Geothermal
5. Wave


While solar, wind and wave energy all originate with the Sun, the heat locked up in the Earth itself offers another huge potential energy resource. Historically, that “geothermal” power could be converted into electricity only in those rare locations where natural fissures allowed water to flow into deep hot rock and come to the surface at temperatures high enough to generate steam. Now an innovator in Alaska has developed the first low-temperature geothermal power plant, which United Technologies is commercializing for worldwide sale.

Take a look at my short video on geothermal power to learn more.

[kml_flashembed movie="http://www.youtube.com/v/R02sy5TI4bs" width="425" height="350" wmode="transparent" /]

If you have any questions or comments on geothermal energy, please post them here. I’ll do my best to answer.

Posted in Energy / Read 1 Response

U.S. Government Scientists Chime In

Lisa MooreThis post is by Lisa Moore, Ph.D., a scientist in the Climate and Air program at Environmental Defense Fund.

IPCC scientists have been saying for years that man-made global warming is likely to increase extreme weather events. A new report ("Weather and Climate Extremes in a Changing Climate") from U.S. government scientists confirms these findings, and focuses specifically on the U.S.

It’s certainly timely, considering the devastating floods in the Midwest.

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Brewing Gasoline with Yeast

Miriam HornThis post is by Miriam Horn, a writer at Environmental Defense Fund and co-author of the New York Times bestseller, Earth: The Sequel. It’s part of a video series on new energy technologies, Unleash the Future.


1. Introduction (YouTube)
2. Solar
3. Biofuels
4. Geothermal
5. Wave


“Anything you can get out of a barrel of oil, you can get out of a pound of sugar with the right microbe.” So says Jack Newman of Amyris Biotechnologies, who is using genetically-modified yeast to brew gasoline.

Take a look at my short video on biofuels to learn more.

[kml_flashembed movie="http://www.youtube.com/v/ySnUAAihUjg" width="425" height="350" wmode="transparent" /]

If you have any questions or comments on biofuels, please post them here. I’ll do my best to answer.

Posted in Energy / Read 4 Responses