The best thing, of course, would be to eliminate as much pavement as possible while also installing more trees. In lieu of that ideal world, the researchers encourage planners to focus on those areas with the lowest canopy coverage right now rather than try to help already-shady blocks. As we combat climate change, they write, we have to be aware of the socioeconomic and racial inequities already plaguing cities. Low income areas with high proportions of minorities generally have less access to green space already, whereas wealthy, white neighborhoods tend to have much higher vegetation coverage (plus the money to pay for air conditioning). If we want to really help people, we’ll plant trees in areas that don’t already have them.