Acadia’s climate is changing. While changes in weather take place over minutes, hours, or days, changes in climate are measured over years, decades, or centuries. Weather data have been collected in Acadia since 1916, giving us a window into long-term shifts in the park’s climate.
Among the greatest environmental challenges facing Acadia National Park is the presence and threat of invasive species. Non-native species, especially those considered invasive, threaten communities of native plants and animals across the United States.
Invasive plants threaten Acadia's native ones. Learn more about these alien invaders and the steps park staff take to keep them at bay.
Pests & Diseases
Learn more about the steps park staff take to manage pets and diseases that can kill an organism or an entire species.
Located along the mid-coast of Maine, Acadia is downwind from large urban and industrial areas in states to the south and west. Periodically, high concentrations of air pollutants blow into the park from these areas. Acadia is considered a Class I area under the Clean Air Act, which means that the park deserves the highest level of air-quality protection.
Last updated: April 19, 2022