Combining proxy data with climate models from the Last Glacial Maximum offers stronger evidence for narrowing down the modern-day climate sensitivity range, indicating an equilibrium sensitivity of 2.9C with a very likely range of 2.1-4.1C.
The study suggests a 30% reduction in the IPCC's climate sensitivity range, supporting central estimates around 3.0C and lower estimates near 2.0C, indicating that high climate sensitivity is less probable.
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