Viggen Posted May 22, 2007 Report Share Posted May 22, 2007 A controversial new idea suggests that a large space rock exploded over North America 13,000 years ago. The blast may have wiped out one of America's first Stone Age cultures as well as the continent's big mammals such as the mammoth and the mastodon. The blast, from a comet or asteroid, caused a major bout of climatic cooling which may also have affected human cultures emerging in Europe and Asia. Scientists will outline their evidence this week at a meeting in Mexico. full article at the BBC Quote Link to comment Share on other sites More sharing options...
caldrail Posted May 22, 2007 Report Share Posted May 22, 2007 Its quite possible that a meteorite exploded over america, but I not so sure it had the widespread effect as you posted. We know that human intervention added disease into the equation, and also that some primitive hunting methods were not exactly geared to preserve wildlife. Still, it might be case, and after all the K/T Event certainly tipped the balance worldwide 65 million years ago. Quote Link to comment Share on other sites More sharing options...
Callaecus Posted July 21, 2007 Report Share Posted July 21, 2007 It seems that some persons are very fond of big explosions to explain everything. What caused those climatic changes was, instead, the end of the Ice Age. Quote Link to comment Share on other sites More sharing options...
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