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greenhouse gases |
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greenhouse gases [′grēn‚hau̇s ‚gas·əz] (meteorology) Gases whose concentration is small and varies, mostly due to anthropogenic factors; they absorb heat from incoming solar radiation but do not allow long-wave radiation to reflect back into space. They include carbon dioxide, methane, and nitrous oxide, as well as, water vapor, carbon monoxide, nitrogen oxide, nitrogen dioxide, and ozone. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| He plans to pursue the case, although reportedly as a means to try to pressure automakers to drop their legal challenge of the state's tough new restrictions on greenhouse gases. Increasing concentrations of carbon dioxide and other greenhouse gases in the air, which cause temperatures at Earth's surface to warm, will turn the upper layers of the atmosphere cooler and thinner in coming decades, new research suggests. Hansen, NASA's top climate expert, says that if actions are not taken to curb greenhouse gases within the next 10 years, Earth could undergo such big changes in temperatures, sea levels, and polar ice that it would "constitute practically a different planet" by the end of the 21st century. |
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