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Planetary core does affect climate, just not much

from Planet Save

In a paper published in the Journal of Climate, American and French researchers explore the role of the Earth's rotation and movements in Earth's core affect global surface air temperatures. They combined data from a model of fluid movement within our planet's core and data on yearly averaged length-of-day observations together with two time series of observed annual global average surface temperatures. They found that up to 1930 the surface air temperature matches on movements of Earth's core and the length of day. But after 1930 the data on Earth core movements, length of day and surface air temperature diverge. more

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