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Ancient Carbon Dioxide Was 5 Times Higher
New Haven CT (SPX) Jun 23, 2005 Earth's carbon dioxide levels 34 million to 45 million years ago were five times today's levels, Yale University said Wednesday of an ancient sea algae study. "Through the energy we consume, each of us makes a contribution to increasing greenhouse gasses, such as carbon dioxide and methane, in the Earth's atmosphere," said lead Yale researcher Mark Pagani. "To understand the implications of these actions for the future, scientists look to the past to gain a better understanding of Earth's climate system under high greenhouse gas conditions," he said. The National Science Foundation study, reported in Science Express, also noted the link between sharp drops in worldwide carbon dioxide levels 25 million to 33 million years ago and the rise of important food crops such as corn and sugarcane. "The onset and stabilization of ice sheets at the same time as a decline in carbon dioxide illustrates the importance of atmospheric carbon dioxide as an agent of both climate and biological change," Pagani said. All rights reserved. Copyright 2004 by United Press International. Sections of the information displayed on this page (dispatches, photographs, logos) are protected by intellectual property rights owned by United Press International. As a consequence, you may not copy, reproduce, modify, transmit, publish, display or in any way commercially exploit any of the content of this section without the prior written consent of by United Press International. Community Email This Article Comment On This Article Related Links SpaceDaily Search SpaceDaily Subscribe To SpaceDaily Express Climate Science News - Modeling, Mitigation Adaptation
The Forgotten Methane Source
Heidelberg, Germany (SPX) Jan 11, 2006In the last few years, more and more research has focused on the biosphere; particularly, on how gases which influence the climate are exchanged between the biosphere and atmosphere. Researchers from the Max Planck Institute for Nuclear Physics have now carefully analysed which organic gases are emitted from plants. |
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