This study assesses the global impacts of changing greenhouse gases (GHGs), aerosols, and tropospheric ozone (O₃) following a carbon neutrality pathway on climate and extreme weather events. Using the Community Earth System Model version 1 (CESM1), the results suggest that future aerosol reductions significantly contribute to climate warming and increase the frequency and intensity of extreme weather events. Aerosol impacts far outweigh those of GHGs and tropospheric O₃, reversing previous predictions. Substantial reductions in GHGs and tropospheric O₃ are necessary to mitigate the harmful effects of aerosol reductions under carbon neutrality.

Pinya Wang, Yang Yang, Daokai Xue, Lili Ren, Jianping Tang, L. Ruby Leung, Hong Liao