Showing posts with label biofuels. Show all posts
Showing posts with label biofuels. Show all posts

Wednesday, August 20, 2008

Seminar on Bio-Fuels/Heating Alternatives in CT

Seminar on biofuels and other alternatives for home heating!
The Solar Energy Association of Connecticut announces a seminar on biofuels on Saturday, August 30 at 2 PM. It will take place at Flamig Farm, 7 Shingle Mill Rd in West Simsbury. Please register by calling 860 233 5684 www.solarenergyofct.org
Interfaith Power and Light is a religious response to global warming with chapters in 26 states and Greater Washington, D.C. Find a link to your local chapter at http://www.theregenerationproject.org/State.
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Friday, February 8, 2008

Bad News about Biofuel

Two studies published in the journal Science warn that replacing petroleum-based fuel with biofuels could actually accelerate climate change, according to an article in the Las Angeles Times (see excerpt below):
The rush to grow biofuel crops -- widely embraced as part of the solution to global warming -- is actually increasing greenhouse gas emissions rather than reducing them, according to two studies published Thursday in the journal Science.One analysis found that clearing forests and grasslands to grow the crops releases vast amounts of carbon into the air -- far more than the carbon spared from the atmosphere by burning biofuels instead of gasoline."We're rushing into biofuels, and we need to be very careful," said Jason Hill, an economist and ecologist at the University of Minnesota who co-authored the study. "It's a little frightening to think that something this well intentioned might be very damaging."Even converting existing farmland from food to biofuel crops increases greenhouse gas emissions as food production is shifted to other parts of the world, resulting in the destruction of more forests and grasslands to make way for farmland, the second study found.The analysis calculated that a U.S. cornfield devoted to producing ethanol would have to be farmed for 167 years before it would begin to achieve a net reduction in emissions."Any biofuel that uses productive land is going to create more greenhouse gas emissions than it saves," said Timothy Searchinger, a researcher at the Woodrow Wilson School of Public and International Affairs at Princeton University and the study's lead author.The studies prompted 10 prominent ecologists and environmental biologists to write to President Bush and congressional leaders Thursday, urging new policy "that ensures biofuels are not produced on productive forests, grassland or cropland." Since 2000, annual U.S. production of corn-based ethanol has jumped from 1.6 billion gallons to 6.5 billion gallons -- supplying about 5% of the nation's fuel for transportation, according to the Renewable Fuels Assn., an industry lobbying group.Federal legislation passed last year calls for production of ethanol to more than double over the next decade. In California, Gov. Arnold Schwarzenegger's proposal to reduce greenhouse gas emissions relies heavily on biofuels.Food crops such as corn, palm oil, sugar cane and soybeans have so far been the main source of biofuels because they are already grown in abundance and are relatively easy to convert.The fuels are environmentally attractive because, unlike fossil fuels, they are theoretically carbon-neutral. Carbon is released when the fuel is burned, but a similar amount is absorbed from the atmosphere as the crops grow.Calculating the actual increase or decrease in carbon emissions has been difficult because myriad factors are involved, such as the energy used to produce the fuels and the varying amounts of carbon released through cultivation.The biggest source of emissions, by far, comes from land-use changes associated with biofuels, the new studies showed.
Interfaith Power and Light is a religious response to global warming with chapters in 25 states and Greater Washington, D.C. Find a link to your local chapter at http://www.theregenerationproject.org/State.
Find discounts on energy saving products at http://www.shopipl.org/

Monday, July 16, 2007

Waiting for a Solar Power Breakthrough

The solar-powered revolution may require a breakthrough or two in order to become a reality, according to the New York Times article excerpted below:
Scientists long ago calculated that an hour’s worth of the sunlight bathing the planet held far more energy than humans worldwide could use in a year, and the first practical devices for converting light to electricity were designed more than half a century ago.
Yet research on solar power and methods for storing intermittent energy has long received less spending, both in the United States and in other industrialized countries, than energy options with more political support.
Indeed, there are few major programs looking for ways to drastically reduce the cost of converting sunlight to energy and — of equal if not more importance — of efficiently storing it for when the sun is not shining.
Scientists are hoping to expand the range of sunlight’s wavelengths that can be absorbed, and to cut the amount of energy the cells lose to heat. One goal is to make materials to force photons to ricochet around inside the silicon to give up more of their energy.
For decades, conventional nuclear power and nuclear fusion received dominant shares of government energy-research money. While venture capitalists often support the commercialization of new technologies, basic research money comes almost entirely from the federal government.
These days, a growing amount of government money is headed to the farm-state favorite, biofuels, and to research on burning coal while capturing the resulting carbon dioxide, the main heat-trapping smokestack gas.
In the current fiscal year, the Energy Department plans to spend $159 million on solar research and development. It will spend nearly double, $303 million, on nuclear energy research and development, and nearly triple, $427 million, on coal, as well as $167 million on other fossil fuel research and development.
Raymond L. Orbach, the under secretary of energy for science, said the administration’s challenge was to spread a finite pot of money to all the technologies that will help supply energy without adding to global warming. “No one source of energy that we know of is going to solve it,” Dr. Orbach said. “This is about a portfolio.”
In the battle for money from Washington, solar lobbyists say they are outgunned by their counterparts representing coal, corn and the atom.
“Coal and nuclear count their lobbying budgets in the tens of millions,” said Rhone Resch, president of the Solar Energy Industries Association. “We count ours in the tens of thousands.”
Government spending on energy research has long been shaped by political constituencies. Nuclear power, for example, has enjoyed consistent support from the Senate Energy Committee no matter which party is in power — in large part because Senators Jeff Bingaman and
Pete V. Domenici, the Democratic chairman and the ranking Republican, are both from New Mexico, home to Los Alamos National Laboratory and a branch of the Sandia National Laboratories.

IREJN is Connecticut's Interfaith Power and Light. Visit us at http://www.irejn.org/.