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Study: Long-Term Global Warming Needs External Drivers

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Earth's atmosphere from International Space Station

Earth's atmosphere viewed from the International Space Station. A NASA/Duke University study provides new evidence that natural cycles alone aren't sufficient to explain the global atmospheric warming observed over the last century.

Credit: NASA

A study by scientists at NASA's Jet Propulsion Laboratory in Pasadena, California, and Duke University in Durham, North Carolina, shows, in detail, the reason why global temperatures remain stable in the long run unless they are pushed by outside forces, such as increased greenhouse gases due to human impacts.

From Jet Propulsion Laboratory/NASA
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