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Science Friday
:: Matter & Energy
Top Stories | November 20
:: More in Matter & Energy
A NASA model incorporates how atmospheric aerosols and greenhouse gases interact, yielding better estimates of the gases' warming and cooling effects.
Trees near high-traffic areas accumulate tiny particles.
At least in our area of the country, consumers are already being assaulted — well before Halloween — with Christmas music, decorations and holiday-themed goods. Reporters are smack in the throes of their own early seasonal blitz: News items carrying a climate or global-warming theme. And I don’t expect the crush of climate news and seminars to diminish until around Christmas. That’s when the next United Nations COP — or Conference of the Parties — will end this year’s pivotal round of negotiations in Copenhagen aimed at producing a new climate treaty.
New work suggests that the envisioned systems would be powerful enough to quickly process even trillions of variables.
Sometimes what’s bad for the economy can be good for the planet. Or so argued Lester Brown, president of Earth Policy Institute, yesterday. This environmental trend spotter pointed to several developments that may have escaped our attention as the global economy alternately sputtered and entered periods of freefall throughout the past 18 months. Trend one: U.S. emissions of carbon dioxide, a leading greenhouse gas, have taken a tumble.
:: Science News
11|7 Issue Links
Quantum effect allows light to carry information farther for computing and encryption
New work suggests that the envisioned systems would be powerful enough to quickly process even trillions of variables.
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Quantum Leaps by Jeremy Bernstein
Review by Tom Siegfried
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Reading in the Brain: The Science and Evolution of a Human Invention by Stanislas Dehaene
A cognitive neuroscientist describes how the brain has adapted to reading and what can cause reading...
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