Fig. 4From: An integrated view of correlated emissions of greenhouse gases and air pollutants in ChinaCorrelation relationships between CO2 and APs emissions in the top 5% high-emitting grids. The numbers within each grid represent the coefficient of determination (R2) and the percent number is the common grid cells of CO2 and APs compared to the top 5% CO2 emissions grids. NA denotes not availableBack to article page