Speaker: Zeyuan Hu
Title: "Polar amplification dominated by local forcing and feedbacks"
During the discussion, Zeyuan will be discussing the following points:
1. Using a climate model with regional CO2 forcing, the authors show that the temperature response to a global CO2 forcing can be roughly linearly decomposed into contributions from polar regions, midlatitudes, and Tropics.
2. Polar amplification is dominated by CO2 forcing in the polar regions.
3. Extra-polar forcing induces a largely uniform warming pattern between polar and extra-polar regions.