Future, more intense heatwaves that are caused by climate change will lead to more wildfires, which will increase emissions of harmful greenhouse gases and particulate matter (PM). It also damages buildings. The effect of increasing fossil fuel combustion in eastern Asia on surface O3 air pollution in the United States is examined with a global three‐dimensional tropospheric chemistry Methane is the second most important anthropogenic greenhouse gas, with a radiative warming of [] W m (Stocker