AUGUSTA, Maine  — A new report says climate change could have an ecological and economic impact on Acadia National Park and Maine’s economy.

The Rocky Mountain Climate Organization and Natural Resources Defense Council plan to issue their report Wednesday.

It says the impact of climate disruption on Acadia could be not just ecological but also economic. The two groups identified Acadia National Park in October 2009 as one of the 25 units of the national park system most endangered by climate change.

More than 2 million people visit the park each year, making it the third-most visited national park in the East.