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, ...

Jan 31, 2011
3.6 / 5 (15) 9

Engineers discover graphene's weakness

(PhysOrg.com) -- If you owned a mechanical device made out of the strongest material known to mankind, wouldn’t you want to know under what circumstances it might fail?

Dec 09, 2010
4.9 / 5 (12) 4 | with audio podcast

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 ...

Nov 23, 2010
2.5 / 5 (2) 0

Volcanoes have shifted Asian rainfall

Scientists have long known that large volcanic explosions can affect the weather by spewing particles that block solar energy and cool the air. Some suspect that extended "volcanic winters" from gigantic blowups ...

Nov 03, 2010
4.9 / 5 (8) 16 | with audio podcast