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