Columbia University

Southwest headed for permanent drought

(PhysOrg.com) -- The American Southwest has seen naturally induced dry spells throughout the past, but now human-induced global warming could push the region into a permanent drought in the coming decades, ...

dateJan 31, 2011 in Earth Sciences
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Engineering ways to turn waste into energy

(PhysOrg.com) -- In recent years, Nickolas Themelis has devoted his career to the management of household trash -- a fitting occupation for a professor originally from Athens, where the ancient Greeks created ...

dateNov 23, 2010 in Engineering
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