African Wildlife Federation

Advocacy: Save African wildlife.

Level: International

Website: awf.org

Purpose: Ensure wildlife and wild lands thrive in modern Africa.

American Rivers

Advocacy: Protected and restored more than 150,000 miles of rivers through Advocacy efforts.

Level: National

Website: americanrivers.org

Social Media: facebook.com/AmericanRivers

Purpose: Protects wild rivers, restore damaged rivers, and conserve clean water for people and nature.

American Solar Energy Society

Advocacy: 501(c)(3) non-profit that advocates for sustainable living and 100% renewable energy.

Level: National

Website: ases.org

Social Media: facebook.com/americansolarenergysociety/

Purpose: Accelerate the transition to a renewable energy and sustainable living society.

Beyond Pesticides

Advocacy: Nonprofit organization headquartered in Washington, D.C.

Level: National

Website: beyondpesticides.org

Social Media: facebook.com/beyondpesticides @beyondpesticides

Purpose: Protect public health and the environment to lead the transition to a world free of toxic pesticides.

Born Free USA

Advocacy: National animal Advocacy nonprofit 501(c)(3) organization.

Level: National

Website: bornfreeusa.org

Social Media: facebook.com/BornFreeUSA/ @BornFreeUSA

Purpose: End the suffering of wild animals in captivity, rescue individual animals in need, protect wildlife—including highly endangered species—in their natural habitats, and encourage compassionate conservation globally.

C40 Cities

Advocacy: Network of the world’s megacities committed to addressing climate change.

Level: International

Website: c40.org

Social Media: facebook.com/C40Cities/ @C40Cities

Purpose: C40 supports cities to collaborate effectively, share knowledge and drive meaningful, measurable and sustainable action on climate change.

Center for Biological Diversity

Advocacy: Systematically and ambitiously use biological data, legal expertise, and the citizen petition provision of the powerful Endangered Species Act to obtain sweeping, legally binding new protections for animals, plants, and their habitat.

Level: National

Website: biologicaldiversity.org

Social Media: facebook.com/CenterforBioDiv/?ref=ts @CenterforBioDiv

Purpose: Protect species throughout the Pacific and Atlantic oceans and international regions as remote as the North and South poles.

Chesapeake Climate Action Network (CCAN)

Advocacy: First grassroots, nonprofit organization dedicated exclusively to fighting global warming in Maryland, Virginia, and Washington, D.C.

Level: Regional

Website: chesapeakeclimate.org

Social Media: facebook.com/ChesapeakeClimate @ChesapeakeClimate

Purpose: Build a diverse movement powerful enough to put our region on the path to climate stability, while using our proximity to the nation’s capital to inspire action in neighboring states, regions nationwide, and countries around the world.

Clean Air Council

Advocacy: Everyone's right to breathe clean air.

Level: Local (Philadelphia)

Website: cleanair.org

Social Media: facebook.com/cleanaircouncil

Purpose: Clean air and a healthy environment.

Climate Hawks Vote

Advocacy: Work to engage and educate voters, advocate on climate change in general election contests, and back climate hawks in Democratic primaries.

Level: National

Website: climatehawksvote.org

Social Media: facebook.com/ClimateHawksVote

Purpose: Elect leaders willing to take on the greatest challenge facing the next few generations of humanity. Too many Democratic politicians consider climate to be just another issue bubbling below the surface of top priorities, and too many advocates are willing to excuse Democratic politicians who tout their states’ coal and oil resources. We need aggressive, progressive champions of climate justice—climate hawks.

Climate Reality Project

Advocacy: Diverse group of passionate individuals who have come together to work on climate change.

Level: National

Website: climaterealityproject.org

Social Media: facebook.com/climatereality @climatereality

Purpose: Turn awareness into action to combat climate change.

Defenders of Wildlife

Advocacy: Protection of all native animals and plants in their natural communities.

Level: National

Website: defenders.org

Social Media: facebook.com/DefendersofWildlife @DefendersofWildlife

Purpose: Wildlife and habitat conservation and the safeguarding of biodiversity.


Advocacy: Nation’s original and largest nonprofit environmental law organization.

Level: National

Website: earthjustice.org

Social Media: facebook.com/Earthjustice/

Purpose: Hold those who break our nation’s environmental laws accountable for their actions.


Advocacy: Deep ecology essays, alerts, and newsfeeds by Dr. Glen Barry.

Level: National

Website: ecointernet.org

Purpose: Avert biosphere collapse and achieving global environmental sustainability through advocacy for biocentric policies.


Advocacy: Website reporting on environmental news, green living, sustainable business, science and politics.

Level: National

Website: ecowatch.org

Social Media: facebook.com/EcoWatch @EcoWatch

Purpose: Uniting all shades of green to ensure the health and longevity of our planet.

Environmental Action

Advocacy: Led by a dedicated small staff, we turn ideas into impassioned, results-oriented activism.

Level: National

Website: environmental-action.org

Social Media: facebook.com/EnvironmentalAction @EnvironmentalAction

Purpose: Protects our environment from polluters and their allies in government.

Environmental Defense Fund

Advocacy: Address today’s most urgent environmental challenges.

Level: National

Website: edf.org

Social Media: facebook.com/EnvDefenseFund/ @EnvDefenseFund

Purpose: Finding solutions that benefit people while protecting natural systems.

Environmental Working Group

Advocacy: Non-profit, non-partisan organization dedicated to protecting human health and the environment.

Level: National

Website: ewg.org

Social Media: facebook.com/ewg.org @ewg.org

Purpose: Empower people to live healthier lives in a healthier environment.

food&water watch

Advocacy: Healthy food and clean water for all.

Level: National

Website: foodandwaterwatch.org

Social Media: facebook.com/FoodandWaterWatch


Purpose: Stand up to corporations that put profits before people, and advocate for a democracy that improves people’s lives and protects our environment.

Friends of the Earth

Advocacy: Leader in the environmental and progressive communities

Level: National

Website: foe.org

Social Media: facebook.com/foe.us

Purpose: More healthy and just world.

Global Covenant of Mayors for Climate & Energy

Advocacy: We envision a world where committed mayors and local governments – in alliance with partners – accelerate ambitious, measurable climate and energy initiatives that lead to an inclusive, just, low-emission and climate resilient future, helping to meet and exceed the Paris agreement objectives.

Level: International

Website: globalcovenantofmayors.org

Social Media: facebook.com/Mayors4Climate @Mayors4Climate

Purpose: An international alliance of cities and local governments with a shared long-term vision of promoting and supporting voluntary action to combat climate change and move to a low emission, resilient society.

Greater Yellowstone Coalition

Advocacy: Across more than 20 million acres, three states, and two national parks, the Greater Yellowstone Coalition works to defend the Wild Heart of North America.

Level: National

Website: greateryellowstone.org

Social Media: facebook.com/greateryellowstonecoalition @greateryellowstonecoalition

Purpose: Protect the lands, waters, and wildlife in and around Yellowstone National Park.

Green America

Advocacy: Economic Action for a Just Planet .

Level: National

Website: greenamerica.org

Social Media: facebook.com/Greenamerica/ @Greenamerica

Purpose: Harness economic power—the strength of consumers, investors, businesses, and the marketplace—to create a socially just and environmentally sustainable society.


Advocacy: Green and peaceful future.

Level: International

Website: greenpeace.org

Social Media: facebook.com/greenpeaceusa

Purpose: Ensure the ability of the earth to nurture life in all its diversity.

Halt the Harm Network

Advocacy: People-powered network connecting Leaders and Supporters in the movement to halt the harms of fracking.

Level: National

Website: halttheharm.net

Social Media: facebook.com/halttheharm/ @halttheharm

Purpose: Advocate for legal and policy solutions and uncover vital new information about the impacts of fracking and the tactics of fracking apologists seeking to expand drilling at all costs.

Interfaith Power and Light

Advocacy: To be faithful stewards of Creation.

Level: National

Website: interfaithpowerandlight.org

Social Media: facebook.com/InterfaithPowerandLight/ @InterfaithPowerandLight

Purpose: Respond to global warming through the promotion of energy conservation, energy efficiency, and renewable energy.

Local Governments for Sustainability (ICLEI)

Advocacy: Leading global network of over 1,500 cities, towns and regions committed​ to building​ a sustainable future.

Level: International

Website: iclei.org

Purpose: Become sustainable, low-carbon, resilient, ecomobile, biodiverse, resource-efficient and productive, healthy and happy, with a green economy and smart infrastructure, we impact over 25% of the global urban population.

National Parks Conservation Association

Advocacy: Independent, nonpartisan voice working to strengthen and protect America's favorite places.

Level: National

Website: npca.org

Social Media: facebook.com/NationalParks @NationalParks

Purpose: Protect and preserve our nation’s most iconic and inspirational places for present and future generations.

National Sustainable Agriculture Coalition

Advocacy: Alliance of grassroots organizations that advocates for federal policy reform.

Level: National

Website: sustainableagriculture.net

Social Media: facebook.com/sustainableag/ @sustainableag

Purpose: For federal policy reform to advance the sustainability of agriculture, food systems, natural resources, and rural communities.

Natural Resources Defense Council

Advocacy: More than two million members and online activists with the expertise of some 500 scientists, lawyers, and policy advocates across the globe.

Level: International

Website: nrdc.org

Social Media: facebook.com/nrdc.org

Purpose: Ensure the rights of all people to the air, the water, and the wild.

Ocean River Institute

Advocacy: Non-profit that provides opportunities to make a difference and go the distance for savvy stewardship of a greener and bluer planet Earth.

Level: National

Website: oceanriver.org

Social Media: facebook.com/oceanriverinstitute/ @oceanriverinstitute

Purpose: Saving wildlife, protecting ecosystems, in environmental education, science, and conservation.


Advocacy: Largest international advocacy organization focused solely on ocean conservation.

Level: International

Website: oceana.org

Social Media: facebook.com/oceana @oceana

Purpose: Win strategic, directed campaigns that achieve measurable outcomes that will help make our oceans more bio diverse and abundant.

Organic Consumers Association

Advocacy: Campaigning for health, justice, sustainability, peace, and democracy.

Level: National

Website: organicconsumers.org

Social Media: facebook.com/organicconsumers


Purpose: Deal with crucial issues of food safety, industrial agriculture, genetic engineering, children's health, corporate accountability, Fair Trade, environmental sustainability and other key topics.


Advocacy: Citizen-based environmental advocacy organization.

Level: Statewide

Website: pennenvironment.org/home

Social Media: facebook.com/PennEnvironment

Purpose: Protect the places we love, advance the environmental values we share, and win real results for our environment in Pennsylvania.


Advocacy: Transition to a clean energy economy in Pennsylvania and beyond.

Level: Statewide

Website: pennfuture.org

Social Media: facebook.com/PennFuture/

Purpose: Protect our air, water and land, and empower citizens to build sustainable communities for future generations.

Pennsylvania Environmental Defense Fund (PEDF)

Advocacy: Not-for-profit organization dedicated to educating the citizens of Pennsylvania about state and federal environmental laws and enabling citizens to use these laws to protect and improve the environment.

Level: Statewide

Website: pedf.org

Social Media: facebook.com/PennsylvaniaEnvironmentalDefenseFoundation

Purpose: PEDF advises individuals and groups of their rights and enables them to pursue legal action against polluters.

Pesticide Action Network

Advocacy: Works with those on the frontlines to tackle the pesticide problem.

Level: National

Website: panna.org

Social Media: facebook.com/pesticideactionnetwork


Purpose: Create a just, thriving food system.

Public Transportation

Advocacy: Nationwide movement to expand public transportation by using social media.

Level: National

Website: publictransportation.org

Social Media: facebook.com/PublicTransportation @PublicTransportation

Purpose: Support a multi-modal lifestyle that allows mobility to all Americans.

Rainforest Action Network

Advocacy: Frontline partnerships and strategic campaigns to save the rainforest.

Level: International

Website: ran.org

Social Media: facebook.com/rainforestactionnetwork/


Purpose: Preserve rainforests, protect the climate and upholds human rights by challenging corporate power and systemic injustice.

Rainforest Alliance

Advocacy: Growing network of people who are inspired and committed to working together to achieve our mission of conserving biodiversity and ensuring sustainable livelihoods.

Level: International

Website: rainforest-alliance.org

Social Media: facebook.com/RainforestAlliance


Purpose: Rebalance the planet by building strong forests and healthy communities around the world.

Save Animals Facing Extinction

Advocacy: 501(c)(4) social welfare, not-for-profit organization that supports policies nationwide at the state and federal levels that will protect Earth’s most precious wildlife.

Level: National

Website: saveanimalsfacingextinction.org

Social Media: facebook.com/saveanimalsfacingextinction/


Purpose: Protect our planet’s endangered wildlife by ensuring that strong laws are in place and that severe penalties are levied against the criminals who deal in wildlife trafficking.

Slow Food USA

Advocacy: Grassroots organization with supporters who link the pleasure of slow food with a commitment to their community and the environment.

Level: National

Website: slowfoodusa.org

Social Media: facebook.com/SlowFoodUSA @SlowFoodUSA

Purpose: Good, clean, and fair food for all.

Smithsonian Institution

Advocacy: World’s largest museum, education, and research complex, with 19 museums and the National Zoo.

Level: National

Website: si.edu

Social Media: facebook.com/Smithsonian @Smithsonian

Purpose: Preserve our heritage, discover new knowledge, and share our resources with the world.

Southeastern Pennsylvania Group of the Pennsylvania Chapter of the Sierra Club

Advocacy: Focus on environmental issues facing the greater Philadelphia area.

Level: Local

Website: sierraclub.org/pennsylvania/southeastern (National: sierraclub.org)

Social Media: facebook.com/SierraclubSE/

Purpose: Maintain and improve the natural resources of the area and protect it for generations to come.

Surfrider Foundation

Advocacy: Activist network dedicated to the protection and enjoyment of the world’s ocean, waves, and beaches.

Level: National

Website: surfrider.org

Social Media: facebook.com/surfrider @surfrider

Purpose: Win legal battles for our coasts and bring awareness to the issues facing our ocean.

Tar Sands Blockade

Advocacy: Coalition of affected Texas and Oklahoma residents and climate justice organizers using peaceful and sustained civil disobedience to stop the construction of TransCanada’s Keystone XL tar sands pipeline.

Level: National

Social Media: facebook.com/TarSandsBlockade @TarSandsBlockade

Purpose: Terminate the Keystone XL tar sands pipeline.


Advocacy: Organization dedicated to making system change inevitable, irresistible and common sense.

Level: National

Website: theleap.org

Social Media: facebook.com/TheLeapOrg/ @TheLeapOrg

Purpose: Inject new urgency and bold ideas into confronting the intersecting crises of our time: climate change, racism and inequality.


Advocacy: Move Philadelphia beyond fossilized democracy

Level: Local (National 350.org)

Website: 350philadelphia.wordpress.com

Social Media: facebook.com/350philly/

Purpose: Fight for solutions to the climate crisis that science & justice demand. Promote a rapid transition to a just and sustainable economy, through education, protest, advocacy, organizing, and coalition building.

Transition Town Media

Advocacy: Group of neighbors and friends working to build a stronger, more resilient future for all of us in the Greater Media Area.

Level: Local

Website: transitiontownmedia.org (international: transitionnetwork.org)

Social Media: facebook.com/TransitionTownMedia

Purpose: Transition efforts are designed to help our community become more self-sufficient, economically and socially vibrant, and enriched through personal connection. Like you, we are concerned about the rising costs of living, climate change, access to healthy food and water, and living in a way that reduces our impact on the planet. We recognize that our government and institutions can’t adequately address all these concerns and that it is up to us, as a community, to strengthen our local economy and to keep ourselves and our families happy and healthy.

Trust for Public Land

Advocacy: Save land for people to enjoy.

Level: National

Website: tpl.org

Social Media: facebook.com/TheTrustforPublicLand/ @TheTrustforPublicLand

Purpose: Create parks and protect land for people, ensuring healthy, livable communities for generations to come.

UN-Habitat: For a Better Urban Future

Advocacy: United Nations agency for human settlements.

Level: International

Website: unhabitat.org

Social Media: facebook.com/UNHABITAT

Purpose: Promote socially and environmentally sustainable towns and cities with the goal of providing adequate shelter for all.

Union of Concerned Scientists

Advocacy: Sound scientific analysis—not political calculation or corporate hype—to create a healthy, safe, and sustainable future.

Level: National

Website: ucsusa.org

Social Media: facebook.com/unionofconcernedscientists


Purpose: Develop and implement innovative, practical solutions to some of our planet’s most pressing problems—from combating global warming and developing sustainable ways to feed, power, and transport ourselves, to fighting misinformation, advancing racial equity, and reducing the threat of nuclear war.

Wilderness Society

Advocacy: Wilderness is a precious resource with many human, natural and economic benefits that we need to protect.

Level: National

Website: wilderness.org

Social Media: facebook.com/TheWildernessSociety @TheWildernessSociety

Purpose: Preserve the true wilderness and to designate new areas that qualify for wilderness protection.

World Wildlife Fund

Advocacy: Conserve nature and reduce the most pressing threats to the diversity of life on Earth.

Level: International

Website: worldwildlife.org

Social Media: facebook.com/worldwildlifefund @worldwildlifefund

Purpose: Worldwide conservation activities.