*By **Priyanka Runwal**, data and science reporter, Climate Central and **Lori Valigra**, Bangor Daily News* *A man crosses the street in downtown Biddeford on a scorching Thursday, ## Aug. 12 , 2021. **Credit: Troy R. Bennett / BDN*** This segment and story were produced through a partnership between Climate Central and Bangor Daily News. BIDDEFORD, Maine — Duane Dennison knows more than most about the effects of hotter summers and heat lingering into the night: He lives near the Saco River in a tent community of about 20 people experiencing homelessness. As temperatures soared into the mid-90s ## Aug. 12 , the 61-year-old painter sought relief at the Seeds of Hope Neighborhood Center, which offers air conditioning, snacks and a place to socialize for up to 30 people at a time. His options to cool off in the summer are the cooling shelter, swimming in the river or hanging out at the local supermarket’s meat department.…