The Hot Zone

Past warming one-tenth rate of modern day climate change

Climate scientists find it useful to use analogs to put modern day change into historical perspective. No analog is more useful than the Palaeocene–Eocene Thermal Maximum, a period of rapid warming that occurred 56 million years ago when the continents were virtually in the same location as today. During the PETM, temperatures shot up 9 to 16 degrees Fahrenheit over a period of 20,000 years, a result of a massive release of carbon into the ocean and atmosphere. A new study out of Penn State... [Read more]

Posted by Alison Hawkes on June 6, 2011 No Comments »
Category : Climates of the Past

Rapid increases in greenhouse gases part of Earth’s history

Rapid increases in greenhouse gases have happened more frequently in the Earth’s history than previously realized, according to a Scripps Institution of Oceanography-led study published last week in the journal Nature. Scientists have studied extensively the the Palaeocene-Eocene Thermal Maximum (PETM), about 56 million years ago, a period of rapid global warming that’s associated with a temperature spike on par with expectations for today’s global warming scenarios. But according... [Read more]

Posted by Alison Hawkes on March 23, 2011 No Comments »
Category : Climates of the Past


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