Green Options

It is estimated that 3 to 7 percent of American children suffer form Attention Deficit Hyperactivity Disorder (ADHD).

That adds up to over 2 million kids, one in every class of 25.

Traditional treatments involve medications such as Ritlin and Adderall, as well as other prescription drugs.  Side effects linked to ADHD medication include depression, anxiety, loss of appetite, inability to fall or stay asleep, rapid heartbeat…the list goes on and on.

Research has shown that nutrient deficiencies can exacerbate ADHD symptoms.  For many children, proper nutrition may effectively work as an ADHD alternative treatment.  (If your child is currently taking prescription medication for ADHD, don’t stop the medication without discussing it with your physician first.)

Harnessing the Earth’s Heat for Food and Power

As the rumbling temblors beneath Yellowstone National Park continue (over 900 hundred such weak quakes in 2008), media attention shifts to two topics: the possibility of a super-volcanic eruption (not likely, according to most geologists), and secondly, the harnessing of geothermal energy.

This latter consideration is all the more fashionable these days as America struggles to embrace an alternative and sustainable energy future.

Geothermal energy offers the promise of a virtually unlimited source of power. Although less energetic in terms  of total constant power output compared to the sun, harnessing the geothermal venting from a single, sufficiently high-grade, hot-spring could conceivably provide power for a population of tens of thousands, and it’s not weather dependent.  But there are also plenty of “lower grade” springs that can be put to other uses, such as growing hothouse produce (and the spring water is also used for watering the plants) and  naturally warming water for fish farming (the Talipia species, a popular dinner fish, is one species farmed this way). Not all animals that are farmed this way are used for food, some, like the farmed alligators in Mosca, CO (see photo), are raised for their skins primarily (though some do eat the meat).

Australian researchers have figured out a cool new way to tackle the threat of global warming, by setting up a network of ‘talking’ fridges.

But wait, the idea isn’t as crazy as it might sound. The fridges feature cutting-edge technology enabling them to communicate with each other via a network to share and store energy from renewable energy sources such as solar panels or wind turbines.

According to inventor, Sam West, “The fridges are designed to talk to each other, negotiating when it’s a good time to consume electricity and when it’s better not to.”

The UK’s Daily Mail recently posted this great John Lawson-penned cutaway drawing of the upcoming Cadillac One, the heavily armored limousine that President Barack Obama will be cruising home in immediately after his inauguration.

Explore Cadillac One inside and out (to varying degrees of precision) after the jump.

A new hybrid inorganic/organic material could usher in solar cells that absorb all solar wavelengths.

The new polymer could also enable much more efficient charge separation since electrons dislodged by light in the material remain free much longer than in conventional solar cells used in solar powered battery chargers.

The inorganic/organic hybrid polymer material can be made into polymer blends that can “absorb essentially across the entire solar spectrum–they go from about 300 nanometers down to about 10,000 nanometers,” said professor [...]

Utility-scale windpower is an important and growing part of the US energy portfolio. Farms ranging in size from dozens to hundreds of turbines can produce in excess of 60 megawatts of power. Plans for gigawatts of wind power are being proposed all over the globe, and new wind farms are regularly being proposed that outstrip one another to be the largest in their respective locations, or in the world. At the far end of the scale, the largest size wind turbines have a rotor diameter of 126 meters (413 feet), and are estimated to be capable of producing 20,000,000 kilowatt hours of electricity annually (enough to power as many as 5000 European homes). Since the power generated by a turbine increases exponentially as it gets larger, new turbines will continue to grow in size.

But small-scale turbines are perhaps a more exciting realm of development. The standard, propeller-style turbine is well established, and there are many suppliers for this kind of generator in a range of sizes. In 2007, Home Power Magazine had a roundup of more than a dozen small wind turbines ranging from 8 feet to 56 feet in diameter (the latter of which is far larger than even a large, inefficient household would need for their power requirements). Green Building Elements had a review of this article last year.

Pacific Gas and Electric in California announced last week it will buy 800 megawatts of solar-generated electricity from two companies, enough to light 239,000 homes. Within three years, PG&E will buy its solar energy from OptiSolar and SunPower, which plan to build the world’s two largest solar farms in California as

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Green tourism is a more popular form of tourism. general travel is going more green. But more expert say that the global warming is also caused by travel.

Citing green hotels, coconut oil fuel for airlines and even recyclable golf tees, executives in one of the world’s largest industries say they are urgently trying to shrink tourism’s oversized environmental footprint.

But with global travel projected to keep soaring, and those very leaders still

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Editor’s note: This week, Lighter Footstep’s Chris Baskind takes a look at an unusual development in alternative energy: burning expired drugs. This post was originally published on August 6, 2007.

Imagine this sticker above your light switch: Powered by Prozac.

No, it’s not likely that your local power plant will be swapping coal for old Celebrex tablets anytime soon. But a little free energy is the happy byproduct of drug disposal by Milwaukee-based

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