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Lake Erie Waterkeeper
The mission of the Lake Erie Waterkeeper is to preserve and to improve the ecosystem of the Lake Erie watershed including its bays, rivers and tributaries.
www.lakeeriewaterkeeper.org

Land Trust for the Little Tennessee
The Land Trust for the Little Tennessee is dedicated to conserving the waters, forests, farms and heritage of the Upper Little Tennessee and Hiwassee River Valleys.
www.ltlt.org

League of Conservation Voters
League of Conservation Voters is a national non-profit organization that works to turn environmental values into national priorities.
www.lcv.org

Leave No Trace
The Leave No Trace Center for Outdoor Ethics teaches people how to enjoy the outdoors responsibly.
www.lnt.org

Legacy Land Conservancy
Legacy Land Conservancy protects forests, prairies, farms, wetlands and waters – today and forever.
www.legacylandconservancy.org

Leopold Center for Sustainable Agriculture
The Leopold Center is a research and education center on the campus of Iowa State University created to identify and reduce negative environmental and social impacts of farming and develop new ways to farm profitably while conserving natural resources.
www.leopold.iastate.edu

Lincoln Green by Design
Lincoln Green by Design’s mission is to bring together individuals, businesses, nonprofits and government agencies to promote a sustainable Lincoln and Lancaster County.
www.lincolngreenbydesign.com

Living Oceans Society
Living Oceans Society has been a leader in the effort to protect Canada’s Pacific coast since they were formed in 1998.
www.livingoceans.org

Local Food Hub
Local Food Hub is a nonprofit organization working to strengthen and secure the future of a healthy regional food supply by providing small farmers with concrete services that support their economic vitality and promote stewardship of the land.
www.localfoodhub.org

Louisiana Bucket Brigade
The mission of the Louisiana Bucket Brigade is to support communities’ use of grassroots action to create informed, sustainable neighborhoods free from industrial pollution.
www.labucketbrigade.org

Louisiana Environmental Action Network
The purpose of the Louisiana Environmental Action Network is to foster cooperation and communication between individual citizens and corporate and government organizations in an effort to assess and mend the environmental problems in Louisiana.
www.leanweb.org

Maine Organic Farmers and Gardeners Association
The purpose of the Association is to help farmers and gardeners grow organic food, fiber and other crops; protect the environment; recycle natural resources; increase local food production; support rural communities; and illuminate for consumers the connection between healthful food and environmentally sound farming practices.
www.mofga.org

Maine Rivers
Our mission is to protect, restore and enhance the ecological health of Maine’s river systems.
www.mainerivers.org

Marcellus Earth First!
Marcellus Earth First! is a regional network of Earth First!ers united in the struggle to stop fracking–a region wide ecological terror.
www.marcellusearthfirst.org

Marine Conservation Alliance
Marine Conservation Alliance promotes science-based management and collaborative projects that promote stewardship, healthy oceans and sustainable fisheries to feed the world.
www.marineconservationalliance.org

Maui Tomorrow Foundation
Maui Tomorrow works with government decision makers and citizens to teach and promote growth management strategies, to implement sustainable development policies for Maui, and to preserve irreplaceable open space and natural areas.
www.maui-tomorrow.org

Media Matters for America
Media Matters for America is a Web-based, not-for-profit, 501(c)(3) progressive research and information center dedicated to comprehensively monitoring, analyzing, and correcting conservative misinformation in the U.S. media.
www.mediamatters.org

MedWish International
MedWish International is a not-for-profit organization committed to repurposing medical supplies and equipment discarded by the healthcare industry with the objectives of providing humanitarian aid in developing countries to save lives and reducing waste to save our environment.
www.medwish.org

Michael Fields Agricultural Institute
We are a non-profit organization with the mission to cultivate the ecological, social, economic and spiritual vitality of food and farming systems through education, research, policy and market development.
www.michaelfields.org

Michael Pollan: Today’s Link
Michael Pollan shares the link (or links) that he thinks readers will find most provocative or useful.
www.michaelpollan.com/todays-link

Michigan Association of Conservation Districts
The mission of the Michigan Association of Conservation Districts is to strengthen Michigan’s Conservation Districts through leadership, information and representation.
www.macd.org

Michigan Energy Options
Michigan Energy Options is a results driven nonprofit focused on promoting and implementing quality energy-efficiency and sustainability programming.
www.michiganenergyoptions.org

Michigan Nature Association
The purpose of the Michigan Nature Association is to acquire, protect and maintain natural areas that contain examples of Michigan endangered and threatened flora, fauna and other components of the natural environment, including habitat for fish, wildlife and plants of the state of Michigan and to carry on a program of natural history study and conservation education as permitted under the Michigan Nonprofit Corporation Act.
www.michigannature.org

Mid-Ohio Regional Planning Commission
The Mid-Ohio Regional Planning Commission (MORPC) is the regional voice and a catalyst for sustainability and economic prosperity in order to secure a competitive advantage for central Ohio.
www.morpc.org

Milwaukee Environmental Consortium
The Milwaukee Environmental Consortium fosters collaboration within Milwaukee’s environmental community through efficiencies of scale attained by the combined efforts of groups working together.
www.milwaukeeenvironmentalconsortium.org

Milwaukee Riverkeeper
Milwaukee Riverkeeper’s mission is to protect water quality and wildlife habitat in the river corridors and to advocate for sound land use in the Milwaukee, Menomonee and Kinnickinnic River Watersheds.
www.mkeriverkeeper.org

Minnesota Environmental Partnership
The Partnership’s mission is to strengthen the effectiveness of the Minnesota environmental community in protecting and enhancing the state’s natural resources.
www.mepartnership.org

Minnesota Waters
The mission of Minnesota Waters is to promote responsible stewardship of our water resources by engaging citizens, local and state policymakers and other partners in the protection and restoration of Minnesota’s lakes and rivers.
www.minnesotawaters.org

Missouri Coalition for the Environment
The Missouri Coalition for the Environment works to protect and restore the environment through education, public engagement and legal action.
www.moenviron.org

Missouri River Relief
Missouri River Relief is a grassroots, volunteer and equipment-based organization dedicated to reconnecting people to the Missouri River through hands-on river clean-ups and education events.
www.riverrelief.org

Missouri Votes Conservation
Missouri Votes Conservation is a non-partisan statewide organization that advocates for pro-environment legislation and political candidates in Missouri.
www.movotesconservation.org

Mobile Baykeeper
Mobile Baykeeper’s mission is to provide citizens a means to protect the beauty, health and heritage of the Mobile Bay watershed, Alabama’s waterways and coastal communities.
www.mobilebaykeeper.org

Mobilization for Climate Justice
The Mobilization for Climate Justice is a North America-based network of organizations and activists who have joined together to build a North American climate justice movement that emphasizes non-violent direct action and public education to mobilize for effective and just solutions to the climate crisis.
www.actforclimatejustice.org

Moms Clean Air Force
Moms Clean Air Force bring parents together to come out in strength for our kids’ right to clean air — just as our parents fought for us, forty years ago, when the Clean Air Act was first passed.
www.momscleanairforce.org

Moms Rising
Since 2006, MomsRising has been working to bring together millions of people who share a common concern about the need to build a more family-friendly America.
www.momsrising.org

Mothers Against Drilling in Our Neighborhoods
Mothers Against Drilling In Our Neighborhoods, or MADION, is a group formed by Ohio mothers whose sole mission is to preserve the health and safety of our children from the harmful effects of drilling for gas and oil in our neighborhoods.
www.mothersagainstfracking.org

Mountain Justice
Mountain Justice works to create diverse and sustainable economies in Appalachian regions traditionally dominated by the coal industry by supporting businesses, jobs and ways of living that are not environmentally or culturally destructive and are nourishing to the social and biological fabric of healthy communities.
www.mountainjustice.org

Mountains to Sound Greenway Trust
The Mountains to Sound Greenway Trust leads and inspires action to conserve and enhance the landscape from Seattle across the Cascade Mountains to Central Washington, ensuring a long-term balance between people and nature.
www.mtsgreenway.org

Multicultural Alliance for a Safe Environment
Multicultural Alliance for a Safe Environment is working to restore and protect the natural and cultural environment through respectfully promoting intercultural engagement among communities and institutions for the benefit of all life and future generations.
www.masecoalition.org