Stop Global Warming

Clean Energy

The Seeds of a New Kind of Energy

Published November 20, 2009 @ 11:52AM PT

Four of the leading designs on display at the recent High Altitude Wind ConferenceFirst, a confession.

Last week, in my introductory blog entry I lied to you, the reader. What’s worse, I did it knowing full well that I was lying through my dirty little teeth.

In that entry I said that the highest wind densities in the country are above North Dakota. That was a lie. Well, okay, lie is a strong word. North Dakota does have the strongest wind you can feel when you lick your finger and stick it in the air.

But it’s not the strongest in the country.

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Green Tech, Public Good

Published November 14, 2009 @ 06:00AM PT

In a recent opinion piece, writer David Dickson, director and editor of the Science and Development Network (SciDev.Net) website and former news editor at Nature, writes the following:

A widely-held myth among climate change activists is that discussing the need for improved technology to mitigate or adapt to climate change detracts from political debates on who is to blame for unsustainable lifestyles — and who should pay for their consequences.

First of all, let me just say: ouch! Is it really fair to say that all climate activists care about is blaming people for spewing out too much carbon and rapping the appropriate knuckles? Come on, Mr. Dickson, there's a reading rainbow of people who care about climate out here talking about all different kinds of things, including, yes, who should change their lifestyles and how. But we also talk about technology. We talk a lot about technology.

Where Dickson's article may be right, however, is that we don't tend to talk enough about how these technologies are going to impact the lives of the world's poor. High-tech developments, after all, occur mostly in rich countries and usually aim to mitigate rich countries' carbon sins.

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Pig Poo into Clean Fuel

Published October 28, 2009 @ 02:54PM PT

What if we could turn our nastiest waste products into clean energy?

Considering that we have so many millions of animals penned up in concentrated animal feeding (or should I say “fattening”?) operations, their waste is a resource we possess in spades. We’ve long known it’s possible to capitalize on this mess but weren’t sure of the best way to do it.

New research is giving us a clue, reports New Scientist. If you’re ever stuck with a big lagoon of pig poo and you’d rather have electricity instead, your best bet, according to a team from Denmark’s Aalborg University, is anaerobic digestion. The anaerobic digestion process, by which the manure is broken down by bacteria in an oxygen-free environment to release methane that can power gas turbines, gives the best bang-for-your-poo.

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Jatropha Will Not Save Us

Published October 13, 2009 @ 01:00PM PT

People still want more and more biofuels, despite the fact that these crops often commandeer land used for food production, which pushes food crops into rainforests, and we know how that turns out.

Just a year ago, reports SciDevNet, a Central American shrub called jatropha curcus was being heralded as the Earth's saving grace. The seeds of the plant produce a diesel-like oil that many predicted would power planes and basically save the world at the same time as pulling millions in the developing world out of poverty.

Some speculated that the booming new industry would spark investments of up to $1 billion a year. The plant was for obvious reasons widely known as the "wonder weed."

One of the main advantages of jatropha is that it can grow in very dry conditions. At least that's what everybody said. However, according to the Green Inc. blog at the New York Times, a June study in the American Proceedings of the National Academy of Sciences found that jatropha was one of the least water-efficient biofuels, comparing only to rapeseed in its thirst. How was that little detail overlooked?

As if that stumbling block weren't enough, according to Green Inc., a report by an environmental and human rights NGO Envirocare, leaked to The East African newspaper last week, tells how the trade in this plant is causing upheaval in Tanzania. Farmers and food crops are being displaced by biofuel production, and water is being consumed at an alarming rate.

Biofuels investors have galloped ahead of the plant science and the community-based planning needed to productively make such sweeping agricultural changes. The journal Nature concludes that we need to go back to the drawing board with some basic research on the wonder weed before this little shrub is going to save anybody at all.

Photo courtesy of treesftf on flickr

Solar Power Goes Thin and Flexible

Published October 06, 2009 @ 06:42AM PT

Solar power has long been a mainstay of alternative energy, but in recent years the field has suffered from a certain lethargy. The innovative company Google, dismayed over the stagnation, decided to get into the field itself by designing solar thermal mirrors and solar-powered gas turbines. Google hasn’t unveiled its inventions yet, but in the meantime, it turns out we have some interesting new solar technologies to admire.

According to ICIS, Dow Chemical just announced a new product, the DOW POWERHOUSE Solar Shingle, a crafty device that can turn your entire house into a little power plant. The shingles, which can be interspersed with regular asphalt shingles on a roof, are an average of 10 percent less expensive than regular roof-top solar panels. The system will set a homeowner back about $27,000.

Dow Chemical anticipates that their green innovation will pull in another kind fo green. The company estimates banking $5 billion by 2015 and as much as $11 billion by 2020 with these little beauties.

ICIS quotes Jane Palmieri, managing director of Dow Solar Solutions, stating that these are the next big thing in solar: “Solar panels have many restrictions and are just not affordable to be used in any meaningful way, but we believe our product will change that paradigm.”

But what about this other new solar invention, Power Plastic, a solar panel that looks like a big spool of photographic film? Fortune reports that the product is light, cheap and so flexible it can be put anywhere.

The film’s creator, solar-power upstart Konarka, already sells pieces of Power Plastic big enough to recharge a cellphone or an iPod, to be used on beach umbrellas and tote bags. Ultimately, though, a translucent version will allow the windows of a skyscraper to power the whole building or the pockets of solar-powered clothing to charge electronics.

The future of solar, it seems, is as thin and flexible as our society’s willingness to confront the inconvenient truth. Here’s hoping the former helps with the latter.

Photo courtesy of LanceCheungImages on flickr

Obama Establishes Enviro, Energy Targets for Federal Government

Published October 05, 2009 @ 05:48PM PT

The Obama administration today ordered federal agencies to aim for aggressive targets to reduce energy use, and incorporate environmental sustainability in federal government operations.

The executive order "Federal Leadership in Environmental, Energy, and Economic Performance," signed today by President Obama, builds off an executive order signed by President Bush in 2007, as well as momentum created by clean energy and energy-efficiency measures funded by the stimulus act.

Under this new mandate, federal agencies must set 10-year energy reduction and environmental sustainability goals within the next 90 days. Clearly identified targets in the order include:

  • 30% reduction in vehicle fleet petroleum use by 2020;
  • 26% improvement in water efficiency by 2020;
  • 50% recycling and waste diversion by 2015;
  • 95% of all applicable contracts will meet sustainability requirements;
  • Implementation of the 2030 net-zero-energy building requirement;
  • Implementation of the stormwater provisions of the Energy Independence and Security Act of 2007, section 438; and
  • Development of guidance for sustainable Federal building locations in alignment with the Livability Principles put forward by the Department of Housing and Urban Development, the Department of Transportation, and the Environmental Protection Agency.

McCain's Gripe: Climate change bills don't include nuclear power

Published October 01, 2009 @ 04:25PM PT

Senator John McCain (R-Ariz.) used a morning yak with NBC's David Gregory to slam the Boxer-Kerry climate and energy bill, as well as the Waxman-Markey House bill that squeaked to passage in June, for not including nuclear energy in their mandates on "renewable," "clean" power.  

Neither bill allows nuclear energy to count toward fulfilling mandated renewable energy generation goals, which arguably could dampen enthusiasm for nukes by states trying to meet these "renewable energy standards," or RES. 

"It’s the left-wing environmental organizations that are not allowing us to move forward with nuclear power," groused the senator, at the "First Draft of History" forum sponsored by The Atlantic and the Aspen Institute.

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