Science Daily January 13, 2020
An international team of researchers (University of California, Georgia Institute of Technology, University of California, Cornell University, Switzerland, Canada) applied macroeconomic impact models and combined historical evidence with climate simulations of mean annual temperature and precipitation. They found that the impacts of climate changes on global GDP-per-capita by the end of the century are temperature-driven, highly dispersed, and model dependent. Across all model specifications, however, income inequality between countries is lower with solar geoengineering. They found that precipitation has little to no effect on GDP growth in our results, but there is a relationship for temperatures. Applying these historical relationships for different models, they found that if temperatures cooled there would be gains in GDP per capita. For some models, these gains are up to 1,000 percent over the course of the century and are largest for countries in the tropics, which historically tend to be poorer…read more. Open Access TECHNICAL ARTICLE
County-level income projections over the 21st century with and without solar geoengineering. Credit: Nature Communications volume 11, Article number: 227 (2020)Â