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Solar energy conversion breakthrough
Scientists say that sunlight falling on only 9 percent of California’s Mojave Desert could power all of the U.S. electricity needs — if the energy could be efficiently harvested; this is a big “if,” since current-generation solar cell technologies are too expensive and inefficient for wide-scale commercial applications; Northwestern University researchers show a way to increase solar cell efficiency
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DOE, partners test commercial geothermal technology in Nevada
Geothermal energy attracts more and more attention, and for good reason: One cubic kilometer of hot granite at 250 degrees centigrade has the stored energy equivalent of 40 million barrels of oil
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Bacteria and nanofilters -- the future of clean water technology
University of Nottingham researchers combine contaminant-eating bacteria with nanoscale filtration membranes to purify fouled water; additional side benefit: The waste products created by purifying water have a very high calorific value, and can be used as fuel
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TSA lab's new concept in airport security: Tunnel of Truth
Futuristic vision of airport security would see passengers stand on a conveyor belt moving under an archway as different sensors scan them for weapons, bombs, and other prohibited items; no need to take the shoes off; by the time they step out of the tunnel, they have been thoroughly checked out
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Cleaner water through nanotechnology
As global warming causes more and more countries to have less and less fresh water for human consumption and irrigation, the purification and re-use of contaminated water becomes more urgent; Aussie researchers offer a nanotechnology-based method to purify water which is more effective and cheaper than conventional water purification methods
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Utility plans first U.S. coal-fired plant to capture CO2
Tenaska proposes a new 600-megawatt, coal-fired power plant in Texas which would be the first to capture and store carbon dioxide emissions underground
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Blinding flashlight developed as new law enforcement tool
California company, working with DHS funds, develops a blinding flash light which may well replace taser guns, pepper spray, and rubber bullets as law enforcement’s non-lethal weapon of choice
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U.K. energy company to demonstrate its oxyfuel technology
Oxyfuel combustion is the process of firing a fossil-fueled power plant with an oxygen-enriched gas mix instead of air; oxyfuel combustion produces a CO2-rich flue gas ready for sequestration
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Graduate student invents gravity lamp
Virginia Tech engineering student wins second place in a Greener Gadgets Conference competition for inventing a floor lamp powered by gravity; lamp can last 200 years
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Protecting against cosmic radiation effects on aviation microelectronics
Cosmic radiation has a deleterious effect on aviation microelectronics — the effect on circuitry is 300 times greater at high altitude than at ground level, creating a potential risk to civil and military aircraft; U.K. scientists accelerate the effects of cosmic radiation so they can replicate the effect of thousands of hours of flying time in just a few minutes
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MRAP modifications for BAE
BAE Systems wins two modifications contracts, worth $21.3 million, for the U.S. mine resistant ambush protected (MRAP); with these two contracts, the company’s MRAP-related contracts have reached $1.3 billion
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King coal, III: DOE makes case for FutureGen restructuring
The Department of Energy restructures its approach to FutureGen — the ambitious plan to develop clean coal technology which produces hydrogen and electricity and mitigates greenhouse gas emissions
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Nano-bristle clothes to generate power from body motions
Yellow Jackets researcher develops energy-generating fiber: If clothes are made from this piezoelectric fabric, the wearer’s body motions would produce useful amounts of power
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Submersible car to be unveiled
James Bond-inspired underwater car to be unveiled at Geneva show 6 March; vehicle promises to be able to drive on land, float on the surface of the water, and also dive to a depth of 10 meters
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King coal, II: Administration restructures approach to clean coal funding
DOE restructures FutureGen approach; under the new plan, DOE’s investment would provide funding for no more than the carbon capture and storage (CCS) component of the power plant — not the entire plant construction; the original 2003 FutureGen concept called for the federal government to cover 74 percent of the cost of the entire project; DOE requests $648 million in FY2009 budget for coal research, development, and deployment
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More headlines
The long view
Sea-Level Rise Has Increased Frequency of Extreme Coastal Flooding Worldwide: Study
Human-caused sea-level rise has significantly increased the frequency of extreme coastal flooding worldwide. New research found that coastal flooding events expected only once every 100 years are now, on average, about 12 times more likely to occur.
China’s ‘Artificial Sun’: The Holy Grail of Energy
China has achieved a major milestone in its pursuit of commercial nuclear fusion, with two domestically developed superconducting magnets designed for a fusion reactor successfully passing technical acceptance and full-load testing.
U.S. Needs New Drought Assessment Framework as Droughts Become More Severe and Unpredictable
Droughts in the United States are becoming more intense and unpredictable, and the nation needs to develop a new drought assessment framework to better understand and address them. A new framework should be developed which distinguishes between short-term operational needs, such as drought monitoring and emergency response, and long-term planning for water management, infrastructure, and climate adaptation.
What Should America Do with Its Aging Dams?
Aging dams pose growing safety and economic challenges. Two Stanford water experts discuss the safety, economic, and environmental tradeoffs driving debates over dam removal.
