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October 31, 2006
"We must look for 'fingerprints' to determine if humans are the cause of climate change," says climate scientist Stephen Schneider
"Fingerprints" refer to consistent temperature-related shifts in patterns and traits in species, ecosystems, and the atmosphere. One "fingerprint," for example, is the observation that the lower atmosphere is warming while the upper atmosphere is cooling. If nature (the sun) were responsible, the sun would warm all levels of the atmosphere equally. One "fingerprint," for example, is the observation that the lower atmosphere is warming while the upper atmosphere is cooling. If nature (the sun) were responsible, the sun would warm all levels of the atmosphere equally.
For more information, contact:
Stephen H. Schneider, (650) 725-9978, shs@stanford.edu
Originally appeared in San Jose Mercury News, October 31, 2006
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