News tagged with waste

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Turning heat to electricity

Turning heat to electricity... efficiently

Physics / General Physics

created Nov 18, 2009 | popularity 4.8 / 5 (64) | comments 9

(PhysOrg.com) -- In everything from computer processor chips to car engines to electric powerplants, the need to get rid of excess heat creates a major source of inefficiency. But new research points the way ...


Crashing the size barrier

Crashing the size barrier

Physics / General Physics

created Nov 18, 2009 | popularity 4.5 / 5 (15) | comments 6

Like surfers on monster waves, electrons can ride waves of plasma to very high energies in a very short distance. Scientists have proven that plasma acceleration works. Now they're developing it as a way to ...


A Greenpeace stands by an installation made from hazardous e-waste in New Delhi

'Catastrophic' e-waste fuels global toxic dump

Space & Earth / Environment

created Nov 13, 2009 | popularity 4.5 / 5 (12) | comments 0

A "catastrophic accumulation" of dozens of millions of tonnes of "e-waste" from computers, cellphones and television sets is fuelling a global pile of hazardous waste, an international body warned Friday.


America's increasing food waste is laying waste to the environment

Space & Earth / Environment

created Nov 25, 2009 | popularity 3 / 5 (4) | comments 3

Food waste contributes to excess consumption of freshwater and fossil fuels which, along with methane and carbon dioxide emissions from decomposing food, impacts global climate change. In a new paper published in the open-access, ...


Electronic Waste Needs to Go Green

Space & Earth / Environment

created Nov 10, 2009 | popularity 3 / 5 (2) | comments 0

(PhysOrg.com) -- Americans love their consumer electronics, but what happens to all the gadgets when their useful life is over? Despite being one of the largest generators of "e-waste" in the world, the U.S. has no federal ...


Making sense of greenhouse gas accounting

Space & Earth / Environment

created Nov 30, 2009 | popularity 3 / 5 (4) | comments 3

Waste management is increasingly gaining the recognition that it deserves as a major contributor to mitigating climate change. But with at least four different methods of accounting for greenhouse gas (GHG) emissions currently ...


Green heating and cooling technology turns carbon from eco-villain to hero

Green heating and cooling technology turns carbon from eco-villain to hero

Technology / Other

created Nov 10, 2009 | popularity 3.7 / 5 (3) | comments 1

Carbon is usually typecast as a villain in terms of the environment but researchers at the University of Warwick have devised a novel way to miniaturise a technology that will make carbon a key material in ...