The Air & Waste Management Association (A&WMA) is a non-profit, non-partisan professional organization that provides training, information, and networking opportunities to thousands of  environmental professionals in 65 countries.

Polar Bears International is a nonprofit organization dedicated to the worldwide conservation of the polar bear.

Rainforest Action Network (RAN) is made up of 36 staff members in San Francisco, CA and in Tokyo, Japan, plus thousands of volunteers and other concerned citizens around the world. Rainforest Action Network protects forests and the rights of their inhabitants by campaigning.

Reef Guardian International is a public-interest advocacy organization exclusively dedicated to the protection of coral reefs and their marine life.

Sea Shepherd Conservation Society (founded in 1981, USA).
The idea of Sea Shepherd was formed when Captain Paul Watson founded the Earth Force Society in 1977 in Vancouver BC, Canada. The original mandate of both organizations was marine mammal protection and conservation with an immediate goal of shutting down illegal whaling and sealing operations, but Sea Shepherd later expanded its mission to include all marine wildlife.
Sea Shepherd is committed to the eradication of pirate whaling, poaching, shark finning, unlawful habitat destruction, and violations of established laws in the World's oceans.
To that end, Sea Shepherd assists national and international bodies in the enforcement of international law under authority of the United Nations World Charter for Nature.

Sharkproject is one of the largest international shark protection organisations. With over 100,000 visitors a month, the Website www.sharkproject.org is the most frequently visited shark website in the world.

Over 2,000 members from around the world support the organisation, including large international companies such as Lufthansa, Sony, Fuji and Lapp AG. Our own posters, TV and radio adverts inform the public at large about the current desperate situation of sharks.

TRN is the only international network of non-governmental organizations, indigenous peoples and individuals working to defend the world's boreal forests.

United Nations Environment Programme is the voice for the environment within the United Nations system. UNEP acts as a catalyst, advocate, educator and facilitator to promote the wise use and sustainable development of the global environment. To accomplish this, UNEP works with a wide range of partners, including United Nations entities, international organizations, national governments, non-governmental organizations, the private sector and civil society.

Over a decade ago, most countries joined an international treaty: The United Nations Framework Convention on Climate Change (UNFCCC).  They consider what can be done to reduce global warming and to cope with whatever temperature increases are inevitable. The UNFCCC secretariat supports all institutions involved in the climate change process.

The United Nations Forum on Forests (UNFF) is part of the United Nations and promotes the management, conservation and sustainable development of all types of forests. 

The World Commission on Forests and Sustainable Development
intends to consult with various stakeholder groups. It will seek to achieve policy reforms aimed at reconciling economic and environmental objectives for sustainable management of global forests.

The World Agroforestry Centre (ICRAF) has invigorated the ancient practice of growing trees on farms, using innovative science for development to transform lives and landscapes. Our research focuses on four global themes: Land and people, Environmental services, Strengthening institutions and Trees & Markets. The Centre’s headquarters are based in the Kenyan capital of Nairobi, with regional centres throughout the developing world in more than 20 countries across Africa, Asia and South America.

The World Conservation Union is the world’s largest and most important conservation network. The Union brings together 82 States, 111 government agencies, more than 800 non-governmental organizations (NGOs), and some 10,000 scientists and experts from 181 countries in a unique worldwide partnership. The Union’s mission is to influence, encourage and assist societies throughout the world to conserve the integrity and diversity of nature and to ensure that any use of natural resources is equitable and ecologically sustainable.

The World Rainforest Movement is an international network to defend the world's rainforests.

The World Resources Institute is an environmental think tank that goes beyond research to create practical ways to protect the Earth and improve people’s lives. Our mission is to move human society to live in ways that protect Earth’s environment for current and future generations.

Known worldwide by its panda logo, World Wildlife Fund (WWF) leads international efforts to protect endangered species and their habitats. Now in its fifth decade, WWF works in more than 100 countries around the globe to conserve the diversity of life on earth.

The Worldwatch Institute is an independent research organization that works for an environmentally sustainable and socially just society, in which the needs of all people are met without threatening the health of the natural environment or the well-being of future generations.

BirdLife International is a global Partnership of conservation organisations that strives to conserve birds, their habitats and global biodiversity, working with people towards sustainability in the use of natural resources. BirdLife Partners operate in over one hundred countries and territories worldwide.

Centre for International Forestry Research is an international research and global knowledge institution committed to conserving forests and improving the livelihoods of people in the tropics. CIFOR's high impact research helps local communities and small farmers gain their rightful share of forest resources, while increasing the production and value of forest products.

The Convention on Biological Diversity establishes three main goals: the conservation of biological diversity, the sustainable use of its components, and the fair and equitable sharing of the benefits from the use of genetic resources.

The Convention on Wetlands, signed in Ramsar, Iran, in 1971, is an intergovernmental treaty which provides the framework for national action and international cooperation for the conservation and wise use of wetlands and their resources. There are presently 157 Contracting Parties to the Convention, with 1708 wetland sites, totaling 153 million hectares, designated for inclusion in the Ramsar List of Wetlands of International Importance.

Environmental Health Sciences is a not-for-profit organization founded in 2002 to help increase public understanding of emerging scientific links between environmental exposures and human health.

Friends of the Earth International is the world's largest grassroots environmental network, uniting 71 diverse national member groups and some 5,000 local activist groups on every continent. FOEI campaigns on today's most urgent environmental and social issues.

The Forest Stewardship Council (FSC) is an international network to promote responsible management of the world’s forests. FSC brings people together to find solutions to the problems created by bad forestry practices and to reward good forest management.

Global Forest Watch (GFW) is a project of the World Resources Institute. GFW is comprised of an international network of public and private organizations that seeks to catalyse changes in forest use to satisfy current and future needs.

Greenpeace is an independent global campaigning organisation which uses non-violent, creative confrontation and acts to change attitudes, behaviour, to protect and conserve the environment and to promote peace. Greenpeace is present in more than 40 countries across Europe, the Americas, Africa, Asia and the Pacific.

Recognizing the problem of potential global climate change, the World Meteorological Organization (WMO) and the United Nations Environment Programme (UNEP) established the Intergovernmental Panel on Climate Change (IPCC).

The International Institute for Sustainable Development contributes to sustainable development by advancing policy recommendations on international trade and investment, economic policy, climate change, measurement and assessment, and natural resources management.

IUGG is dedicated to the international promotion and coordination of scientific studies of Earth (physical, chemical, and mathematical) and its environment in space.

Machaon International is an independent non-commercial organization
promoting protected areas across national borders.

Machaon International

The Noise Pollution Clearinghouse is a national non-profit organization with extensive online noise related resources. The mission of the Noise Pollution Clearinghouse is to create more civil cities and more natural rural and wilderness areas by reducing noise pollution at the source.

The Northern Alliance for Sustainability, ANPED works to empower Northern civil society in creating and protecting sustainable communities and societies world-wide.

The Ocean Conservancy promotes healthy and diverse ocean ecosystems and opposes practices that threaten ocean life and human life. Through research, education, and science-based advocacy, The Ocean Conservancy informs, inspires, and empowers people to speak and act on behalf of the oceans. In all its work, The Ocean Conservancy strives to be the world's foremost advocate for the oceans.

Oceana campaigns to protect and restore the world’s oceans. Our teams of marine scientists, economists, lawyers and advocates win specific and concrete policy changes to reduce pollution and to prevent the irreversible collapse of fish populations, marine mammals and other sea life.

AIDEnvironment is a not-for-profit consultancy for nature conservation and the sustainable use and management of natural resources. We provide strategic advice to government, commercial and civil society organizations, helping them to set goals, formulate visions and develop strategies. They turn to our consultants for advice, policy instruments, management tools, plans and evaluations.

Plantlife International’s activities across the globe concentrate on four focal areas: Important plant areas, Medicinal plants and livelihoods, Policies and strategies, Planta Europa Secretariat.