China’s Global Leadership Reverses Air Pollution Trends
Maps showing trends in global, population-weighted PM2.5 over (a) 1998-2011 and (b) 2011-2019Li et al./Washington University in St. LouisDespite the concerns surrounding climate change, a recent study reveals a positive trend in air pollution. Global data analysis indicates a reduction in exposure to fine particulate matter, a significant environmental health hazard.PM2.5, which stands for...