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Acadia National Park

Cadillac Mountain located on Mount Desert Island, in Acadia National Park, Maine.
Cadillac Mountain located on Mount Desert Island, in Acadia National Park, Maine. Photo: Karla Ann Cote/NurPhoto (Getty Images)

Maine’s Acadia National Park has seen an average temperature rise of a little over 3 degrees Fahrenheit in the last century, creating an ideal environment for forest pests that spread diseases, like ticks. Rising temperatures also put native plants at risk of dying from pathogens or invasive insect species. Lately, the area has seen widespread death of Acadia’s notable red pines.

These changes also affect winter snowpack and will make it harder to host winter sports like skiing and snowboarding in the area.