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April 15, 2009
Green news harvest: Scarce minerals and green tech
A sampling of green-tech news with quick commentary.
First it was concerns over lithium supply, now it's the rare earth metal neodymium.
The bigger story here is national strategies for managing mineral supplies for economic, environmental, and security reasons.
State wants to pull plug on energy-guzzling TVs - San Francisco Chronicle
State regulators want to apply more stringent standards on TV energy use but consumer electronics industry association says it's going about it the wrong way.
Old cathode ray tube TVs consume the least.
Deciphering California's Efficiency Successes - New York Times
California's per-capital electricity use has been steady since the 1970s, a credit to state-led efficiency programs.
But a researcher argues other factors are at play so lessons to other states are limited.
Pond Scum Gets Its Moment in the Limelight - Wall Street Journal
A visit to the University of Texas' massive stash of algae strains.
Profile of ambitious Chinese company BYD which is expanding from small batteries to electric cars.
A First Solar competitor opens factory to make solar cells from cadmium telluride.
Methane, the main gas in natural gas, derived from sludge will power buses in Norway.
Modern farming techniques are creating a thirst for water that Indian farmers are unable to keep up, creating real social upheaval.
No doubt people will dispute these revised numbers, but it's still eye-opening:
researchers find that it takes between roughly 200 and 800 gallons of water to make one gallon of ethanol.
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