The other is identical except the world has started using stratospheric aerosol injection, following the concept of Mount Pinatubo. In the vast majority of places people live, the second scenario is better than the first: only a few places, less than 0.4 percent of the planet’s inhabited surfaces, have more extreme weather. Most people experience less extreme weather, including lower temperatures and lower extreme temperatures, along with less extreme precipitation and less risk of flooding or drought.
