Making an Impact
For more than 60 years, CLF has gone head-to-head with those who would pollute our air and water, harm our communities, and damage our climate – in the courts, in state houses, and at the negotiating table.
1966
STOPPING IRRESPONSIBLE DEVELOPMENT
CLF is founded to save Massachusetts’ iconic Mt. Greylock from development as a ski resort.
1978
PROTECTING OUR OCEAN
Our legal challenge stops offshore drilling on Georges Bank, an area vital to the region’s fishing economy.
1978
PROTECTING ICONIC TREASURES
CLF works with partners to prevent a four-lane highway through Franconia Notch, protecting its dramatic scenery.
1983
CLEANING UP BOSTON HARBOR
CLF sues the EPA and the Commonwealth of Massachusetts to force the cleanup of Boston Harbor, prompting its transformation from an open sewer to a thriving waterfront.
2002
SAFEGUARDING VERMONTERS
CLF opposes the “fire sale” of the Vermont Yankee nuclear power plant. In 2014, after ears of advocating for the plant’s closure, CLF celebrates the announcement of plans to shutter the facility that year.
2006
PUSHING FOR CLEAN WATER
CLF prevails in requiring the City of Portsmouth to adopt stricter clean-up technology for its Peirce Island Wastewater Treatment Plant, one of the largest plants on the New Hampshire seacoast.
2006
PRESERVING OUR WILD PLACES
CLF acts as a leading member of the coalition that drove passage of the New England Wilderness Act of 2006 – protecting more than 80,000 acres of wild forests in the Green and White Mountains.
2008
CREATING CLIMATE LAWS
CLF pushes forward landmark legislation in Massachusetts that creates enforceable Limits on climate-damaging emissions.
In 2014, CLF successfully pushes for full enforcement of that law before the Massachusetts Supreme Court.
2016
CHAMPIONING CLEAN ENERGY
CLF advocates successfully for the opening of the nation’s first offshore wind farm off the coast of Block Island in Rhode Island.
2016
HOLDING BIG OIL ACCOUNTABLE
CLF launches groundbreaking lawsuits against Big Oil companies for failing to protect their vulnerable facilities from climate disaster, leaving New England communities at risk from toxic spills.
2016
SAVING AN OCEAN TREASURE
CLF and our partners successfully campaign for President Obama to designate the first marine national monument in the Atlantic: the Northeast Canyons and Seamounts.
2019–2021
LEADING THE NATION
CLF successfully advocates for Maine, Vermont, and Rhode Island to join Massachusetts and Connecticut in passing binding laws to limit carbon pollution. New England states lead the nation in this climate action.
2021
TACKLING PLASTIC POLLUTION
In an effort to stem the tide of plastic pollution, CLF and our partners in Maine push the passage of a first-of-its-kind law that makes big corporations pay the costs to dispose of their wasteful polluting packaging.
2023
SHUTTING DOWN EXXONMOBIL
Under pressure from CLF’s 2016 lawsuit, ExxonMobil shutters and sells its polluting oil terminal in Everett, Massachusetts. In a further win for the community, CLF and Exxon agree the site can never be used for oil storage again.
2024
ENDING COAL IN NEW ENGLAND
After decades of advocacy by CLF and our partners, New England’s last coal-fired power plants agree to shut down – marking the end of coal in New England.
2026
POWERING NEW ENGLAND WITH CLEAN WIND ENERGY
After years of advocacy for responsibly sited offshore wind, CLF celebrates when Vineyard Wind and Revolution Wind start sending power to hundreds of thousands of New England homes and businesses.


