The Rapanui (of Easter Island), the Mayans, and the Norse colonists of Greenland all share one similarity: each culture was brought down by preventable, human-cause environmental catastrophe. Sure, Michael Crichton says it's all bunk, but Jared Diamond (the author of the infinitely discussable, Pulitzer prize winning Guns, Germs and Steel) recently came out with a new book that suggests that maybe we ought to be worried after all. Hear him discuss it on NPR's morning edition.
posted on Jan 10, 2005 - View this thread

NASA's Chandra X-Ray Observatory recently detected [reg required] the largest explosion ever detected in the universe: an eruption releasing the energy of hundreds of millions of gamma ray bursts. Just to put it in perspective, a single GRB releases enough radiation to wipe out just about everything human beings would require for survival in a 1000 light year radius. (The Milky Way spans ~100,000 light years, while the United Federation of Planets spans about 8,000). Arthur C. Clarke has gone so far as suggesting that GRBs might be one of the reasons for Extra-Terrestrial silence: Gamma Ray Bursts are so large and inescapable, a single one would wipe out even an enormous galactic empire. Makes killer asteroids seem downright quaint.
posted on Jan 8, 2005 - View this thread