Five-year-old Julia Martinez shovels dirt as Jake Hennessey, of the DCR Massachusetts Urban and Community Forestry Program, assists Malikai DeTar-Kock, 2, and Sonorus Salem, 4, water the root ball of a tree they just set into the ground. (Jesse Costa/WBUR)
A single block in Chelsea, Mass., may offer a template for cities looking at what works — or doesn't — to cope with longer, hotter summers because of the warming climate.
WBUR's Martha Bebinger takes us to the Cool Block project in Chelsea, Massachusetts.
