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SCIENTISTS "RECONSTRUCT" EARTH'S CLIMATE OVER PAST MILLENNIA

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Using the perspective of the last few centuries and millennia, speakers in a press conference at the Fall Meeting of the American Geophysical Union in San Francisco will discuss the latest research involving climate reconstructions and different climate models.

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Shindell will discuss how he used a climate model that included solar radiation changes, volcanic eruptions, and natural internal variability to arrive at a more accurate look at Earth's changing climate today. Shindell said that while solar radiation changes and volcanoes exert a similar influence on global or hemispheric average-temperature changes, the solar component has the biggest regional effect over time scales of decades to centuries, while volcanoes cause the largest year-to-year changes
 
Yes they are the biggest natural source. Now imagine if something came along and constantly spewed more than volcanoes.
 
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