The term “heat island” refers to an area that is significantly warmer than its surroundings, generally due to human activities. The temperature difference between the heat island and surrounding areas is usually larger at night than during the day, and is most noticeable during the summer and winter. The primary cause of hotter temperatures are structures such as buildings, roads, and parking lots absorbing and re-emitting the sun’s heat more than a landscape with greenery; energy generation can add still more. With climate change causing summers to be hotter year after year, the added temperature increase within heat islands can be deadly, with a disproportionate effect on marginalized communities.
Join this webinar to discuss heat islands and mitigation strategies in the Chesapeake Bay watershed.