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Rings reveal extensive yearly climate record

A new study of the oldest trees in Mexico provides the first ever detailed, year-by-year look at the climate of Mesoamerica over a thousand-year span. The data, gathered from the annual growth rings in trees, supplies precise ...

dateApr 18, 2011 in Earth Sciences
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Why seas are rising ahead of predictions

Sea levels are rising faster than expected from global warming, and University of Colorado geologist Bill Hay has a good idea why. The last official IPCC report in 2007 projected a global sea level rise between 0.2 and 0.5 ...

dateNov 01, 2012 in Earth Sciences
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