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Street trees can help cool ever-hotter temps. But they present their own problems to solve

State Street in Lancaster on August 4, 2022. Jeremy Long / WITF
State Street in Lancaster on August 4, 2022. Jeremy Long / WITF

STATEIMPACT PENNSYLVANIA - In cities, sidewalks and roads retain heat and can make afternoons even hotter – something called the urban heat island effect. Cities are planting trees as one way to try to check the escalating temperatures. But there can be obstacles to that solution. CLICK HERE.