500 million years of climate history pinned on plate tectonics

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Enlarge / Indonesia’s Paluweh volcano sits in a region of colliding tectonic plates—perhaps the formula for glacial periods in geologic history.

Generally speaking, it’s easy enough to make sense of the last few million years of climate patterns—the world looked much as it does today, so changes in greenhouse gas concentrations or ocean circulation can be related to what we see now. But as you go back farther in time, you can find very different climates and a rearranged map of continents, and those require more creative thinking.

For example, the ice age periods in the recent past are not unique. But most of the last 500 million years have been much warmer—what has caused the climate to slowly drift toward warmer or cooler temperatures over millions of years?


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This article and images were originally posted on [Ars Technica]. Credit to the original author and Ars Technica | ESIST.T>G>S Recommended Articles Of The Day

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