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In the November 21 Issue:

TABLE OF CONTENTS
Invisibility Uncloaked: In race to make things disappear, scientists gain ground on science fiction
Aping the Stone Age: Chimp chasers join artifact extractors to probe the roots of stone tools

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A picture from 1940 (top) shows the Chacaltaya glacier and ski area in Bolivia, which looked rather different in 2005 (bottom). Records of glaciers melting join thousands of other data sets in a new analysis of the impacts of climate change.

Credit: IPCC

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Comments 1

In the Top older picture did they capture the image of a South American Condor? It looks like a really big bird in the sky over the peak, that is why I ask. Fallow the line into the sky for the location it's a dark image that looks like a wingspan.

Hays Matthews

May. 19, 2008 at 11:41pm