“Someone’s going to build wealth every time we change the built environment,” says Barbara Wilson, an environmental planning professor at the University of Virginia.  “It is just very rare that the people who benefit are those who already live in a low-income community.” If a new green space attracts wealthier residents and real estate speculators looking for cheap property to redevelop, the most marginalized people in the neighborhood may be forced to leave. As a result, they’re left with a longer commute to the city center and higher carbon footprints.