Ecological tipping point: 5+ El Niño events per century
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Anthropologists discovered a frequency threshold causes dramatic changes in marine and terrestrial eastern Pacific ecosystems, and offers a look into our future.
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EXPECTING THE UNEXPECTED IN CLIMATE CHANGE
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Studying polar ice and tropical glacier ice samples, Lonnie Thompson and his team reconstruct climate and environmental histories going back 25,000 years – findings they say may help explain devastating population disruptions throughout history.
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