06 Jun '11, 6pm

Carbon Released 10 Times Faster Than in Past Era, Study Says

06 Jun 2011: Current CO2 Releases Are 10 Times Higher Than in Past Era, Study Says Carbon is being released into the atmosphere 10 times faster today than during a previous geological era when the Earth experienced significant warming , a new study says. In the study, published in the journal Nature Geoscience , scientists used rock and sediment samples from a coal mining operation in Norway to do a detailed analysis of the planet’s CO2 emissions during a period known as the Paleocene-Eocene Thermal Maximum (PETM), when the Earth’s temperature rose by at least 9 degrees F over a 20,000-year period. Their analysis, the most thorough to date of the PETM, showed that carbon emissions during that era were nearly 10 times less than the 8 billion metric tons of CO2 being emitted today. The maximum amount of CO2 emitted annually during the PETM was 1.7 billion tons, which is stil...

Full article: http://e360.yale.edu/digest/current_co2_releases_10_times...

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