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

Climate change could bring a more toxic world

There’s been growing concern about the levels of mercury and chemicals finding their way to the Arctic, which is ending up in the fat of large mammals. Part of the problem is due to the way toxins travel around the globe, but also because animals like polar bears and Arctic foxes are getting leaner. As the extra fat burns away, toxins are released into the blood streams of these animals. Climate change could be exacerbating the problem for very different reasons. Nature News reports that environmental... [Read more]

Posted by Alison Hawkes on November 11, 2010 No Comments »
Category : Climate Science and Scientists

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