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Biden brings focus on energy policy to Democratic ticket: Scientific American Blog - 0 views

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    By picking Joe Biden as a running mate, Barack Obama may have reassured the electorate about his lack of experience and foreign policy bona fides, according to some pundits. But the coal-state senator may have also taken a step toward shoring up his enviro cred. The Delaware senator is as serious as a heart attack about energy policy-a point The Wall Street Journal's Jeffrey Ball made this weekend.
Energy Net

Population Bomb Author's Fix For Next Extinction: Educate Women: Scientific American - 0 views

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    It's an uncomfortable thought: Human activity causing the extinction of thousands of species, and the only way to slow or prevent that phenomenon is to have smaller families and forego some of the conveniences of modern life, from eating beef to driving cars, according to Stanford University scientists Paul Ehrlich and Robert Pringle.
Energy Net

Flexible Nanoantennas Put Us On The Road To Affordable Solar Power | Scientific Blogging - 0 views

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    Researchers at the U.S. Department of Energy's Idaho National Laboratory say they have devised an inexpensive way to produce plastic sheets containing billions of nanoantennas that collect heat energy generated by the sun and other sources. They say this technology is the first step toward a solar energy collector that could be mass-produced on flexible materials.
Energy Net

China's Big Push for Renewable Energy: Scientific American - 0 views

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    Winds rush through the capital city of China, blowing dust storms that envelop it in grit from the encroaching Gobi Desert each spring. Last year, the government finally took advantage of those winds, installing 33 wind turbines manufactured by domestic company Xinjiang Gold Wind at the Guanting wind power field to harvest this energy and use it to supplement the electricity provided by polluting coal. Those suburban turbines began turning in earnest on January 20, providing 35 million kilowatt-hours of electricity to Beijing through July, or roughly 300,000 kilowatt-hours a day.
Energy Net

Giant's Electric-Assist Bicycle: A Review: Scientific American Blog - 0 views

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    have a biking nemesis: During my regular rides around the six-mile outer loop of New York's Central Park, the big hill at the north (uptown) end of the park invariably sucks the very life out of my aging legs. Yesterday, however, pedaling up the big incline was another story altogether. It was as easy as climbing a small rise. My new-found prowess had nothing to do with any improved fitness, of course; it was the bike I was riding, the Twist Freedom DX from Taiwan's Giant Bicycle, Inc., which augments every pedal stroke with a finely timed electric boost.
Energy Net

Looking at Hydrogen to Replace Gasoline in Our Cars: Scientific American - 0 views

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    The jury is still out on whether hydrogen will ultimately be our environmental savior, replacing the fossil fuels responsible for global warming and various nagging forms of pollution. Two main hurdles stand in the way of mass production and widespread consumer adoption of hydrogen "fuel cell" vehicles: the still high cost of producing fuel cells, and the lack of a hydrogen refueling network.
Energy Net

Inside the Solar-Hydrogen House: No More Power Bills--Ever: Scientific American - 0 views

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    EAST AMWELL, N.J.-Mike Strizki has not paid an electric, oil or gas bill-nor has he spent a nickel to fill up his Mercury Sable-in nearly two years. Instead, the 51-year-old civil engineer makes all the fuel he needs using a system he built in the capacious garage of his home, which employs photovoltaic (PV) panels to turn sunlight into electricity that is harnessed in turn to extract hydrogen from tap water.
Energy Net

Steven Chu calls for alt-energy "revolution": Scientific American Blog - 0 views

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    The world needs a "revolution" in science and technology to solve global warming, says Energy Secretary Steven Chu. Chu, a Nobel Prize-winning physicist, made the remarks in today's New York Times. The article was short on specifics, but Chu, former director of Lawrence Berkeley National Laboratory, said Nobel-level breakthroughs were needed in electric batteries, solar power and crops that could be turned into fuel. "Science and technology can generate much better choices," Chu, a long-time proponent of alternative energy development, told the newspaper. "It has, consistently, over hundreds and hundreds of years." Among the points he made:
Energy Net

Solar Power Lightens Up with Thin-Film Technology: Scientific American - 0 views

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    The sun blasts Earth with enough energy in one hour-4.3 x 1020 joules-to provide all of humanity's energy needs for a year (4.1 x 1020 joules), according to physicist Steven Chu, director of Lawrence Berkeley National Laboratory. The question is how to most effectively harness it. Thin-film solar cells may be the answer: One recently converted 19.9 percent of the sunlight that hit it into electricity, surpassing the amount converted into power by mass-produced traditional silicon photovoltaics and offering the potential to unleash this renewable energy source.
MrGhaz .

More Room in The Ark? A Search That Continues - 0 views

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    Just How Many different kinds of living things exist in the world is question people have been trying to answer for more than 2,000 years. One of the first to attempt an answer was the Greek philosopher Aristotle, who died in 322 B.C. He identified about 1,000 different species of plants and animals .
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Le Rukwatitan bisepultus a vécu il y a environ 100 millions d'annéesLes fossiles de plus de trente titanosauresCes dinosaures géants ont été surtout découverts en Amérique latine. Les scientifiques...

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The oxygen is released into the air, and the lithium ions are stored in the battery as lithium metal after capturing the electrons.When the battery discharges, it chemically consumes oxygen from th...

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Arabica Robusta

Africans Face Competing Visions of Agricultural Development at a Critical Juncture | Fo... - 6 views

  • While it is not surprising that the IFIs mediate the global economy, often brutally, in favor of the OECD countries-the flip side would be to engage in development activities as if these global imbalances did not exist. This seems to be the Earth Institute's perspective. Their website describes their program as bringing the benefits of scientific expertise of "850 scientists, postdoctoral fellows, staff and students working in and across more than 30 Columbia University research centers" to solve "real world problems." The Earth Institute believes "finding solutions to one problem, such as extreme poverty, must involve tackling other related challenges, such as environmental degradation and lack of access to health care and education."
    • Arabica Robusta
       
      Good critique of the Earth Institute: "engage in development activities as if ... global imbalances did not exist."
  • The IFIs' fixation on macroeconomic indicators leads to the misguided belief that bumping up countries' GDPs will help poor Africans by way of some mythological trickle-down effect that has yet to materialize. This metric has led, among other things, to an inexorable push in Africa for large scale industrial agriculture for export markets, while leaving the peasant farmers who produce most of the food consumed by Africans out of the equation. The aid regime has thus done more to open Africa's agricultural resources for exploitation than to mitigate the roots of poverty and hunger in Africa.
  • It is not difficult to succeed when one has a lot of money and one defines success as eradicating poverty in individual villages.
  • ...3 more annotations...
  • The villagers in Sauri are understandably happy with the results, but off the record they have criticized the non-inclusiveness of the top-down approach.[i] UN officials and scientists have also been reluctant to speak against Sachs on the record for fear of retribution.
  • The Millennium Villages siphon off money better spent elsewhere, and draw attention away from creative, grassroots approaches to local problems. Long-term solutions require sustainable low-tech methods that farmers can control, such as permaculture, seed banks, and green manure; as well as redistributive land reform and marketing boards to provide some security.
  • Millennium Challenge Corporation (no direct relation to the Millennium Villages project). Created in 2004, the MCC is a U.S. Government aid organization that has spent $5.5 billion since 2004 awarding contracts to private businesses in target countries. The MCC's focus on raising the overall GDP is being pursued with the same failed policies as the IFIs: aggressive privatization, foreign direct investment (predatory capital), and global integration.  One of the more contentious aspects for small farmers are land grabs by foreign investors, facilitated via MCC contracts for "Systematic Land Regularization and Improvement of Rural Land Allocation." A recent report by GRAIN reveals that the MCC has been using "Land Regularization" to change land ownership rules and gain access to tens of thousands of acres of land in three of the ECOWAS countries: Benin, Ghana, and Mali.
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    Good critique of Earth Institute
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