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Climate models overestimate natural variability
By looking at satellite measurements of temperature changes in the lower layer of Earth’s atmosphere, LLNL scientists found that climate models may have overestimated the decade-to-decade natural variability of temperature.
By looking at satellite measurements of temperature changes in the lower layer of Earth’s atmosphere, scientists found that climate models may have overestimated the decade-to-decade natural variability of temperature.
Lawrence Livermore National Laboratory (LLNL) statistician Giuliana Pallotta and climate scientist Benjamin Santer created a statistical framework to comprehensively assess the significance of differences between simulated and observed natural variability in mid- to upper tropospheric temperature (TMT). The troposphere is the lowest region of the atmosphere, extending from the Earth’s surface to a height of about 4 to 12 miles, depending on latitude and season.