The Maine Department of Environmental Protection is responsible for protecting and restoring Maine's natural resources and the public health by implementing environmental laws, providing information and grants, measuring environmental health and impacts of activities throughout the state of Maine. Located in Augusta with regional offices in Portland, Bangor, and Presque Isle.

The World Ocean Observatory is a web-based place of exchange of information and educational services about the ocean including links, a directory of more than 20,000 ocean-related organizations worldwide, a daily digest of ocean news, educational curricula, on-line exhibits and data visualizations, media and publications, and live interactive ocean "events.”

Friends of Casco Bay is a community-based nonprofit organization dedicated to improving the environmental health of Casco Bay. Our work involves research, advocacy, education, and collaborative problem solving. Home to the Casco Baykeeper®, we are a founding member of the Waterkeeper® Alliance, a network of more than 180 groups working to protect waters across the globe. Learn more at our website.

Maine Coast Heritage Trust conserves and stewards Maine’s coastal lands and islands for their renowned scenic beauty, outdoor recreational opportunities, ecological diversity and working landscapes. MCHT promotes the conservation of natural places statewide by working with land trusts, communities, and other partners.

Cliff Side Tree Service specializes in tree preservation, serving architects and landscape architects. What we need to protect: the stately trees that define the character and charm of a township; trees of homes and buildings; trees that fill the courtyards and shade the streets and byways.