Study explains Antarctic sea ice growth and sudden decline
A new Stanford University study has helped solve a mystery about dramatic swings in sea ice extent around Antarctica.
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A new Stanford University study has helped solve a mystery about dramatic swings in sea ice extent around Antarctica.
The astronauts set to become the first lunar visitors in more than half a century arrived at their launch site Friday, joining the towering rocket that stands poised to blast off next week and send them around the moon.
Today's nearly $70 billion U.S. biofuels economy is powered by two technology toolboxes. Biochemical technologies—used to produce around 17 billion gallons of ethanol annually—leverage microorganisms to convert plant biomass sugars into alcohols, other biofuels, or chemicals. Chemical technologies, the second toolbox, use catalysts to turn biomass and wastes into similar target products.