Differences In Tree Cover In Baltimore

One of the reasons low-income areas of cities are often hotter is that they tend to have less green cover than do wealthier areas.

This is a street on the edge of Broadway East, one of the city’s hottest neighborhoods. It’s also in one of the poorest areas of Baltimore.

Roland Park is a cooler neighborhood in a more affluent part of the city.

Nate Gregorio and Tim Jacobsen for NPR