Peter Clark, an OSU paleoclimatologist and co-author on the Science article, said: “When you combine the data from sites all around the world, you can average out those regional anomalies and get a clear sense of the Earth's global temperature history.” The climate model used by the scientists projects that global temperature will rise another -16.7 to -11.3 degrees Celsius by the end of this century, and this largely depends on the ratio of carbon emissions.
Clark added: “What is most troubling is that this warming will be significantly greater than at any time during the past 11,300 years.” One of the factors that affects the global temperature is gradual change in the distribution of solar insulation associated with Earth's position relative to the Sun. The research team included Jeremy Shakun of Harvard University. And the primary things used for the research were fossils from ocean sediment cores and terrestrial archives to reconstruct the temperature history.
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