Posted by Admin on December 20, 2007
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Using samples originally collected by Charles Darwin nearly 200 years ago, scientists have found that windblown dust can carry microbes across whole oceans and continents.
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Posted by Admin on December 19, 2007
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Moderate warming 55 million years ago may have melted huge icelike deposits of greenhouse gases, according to new research that raises dire possibilities for Earth’s current warming.
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