An environmental organization is an organization that combats harmful in their view, changes in the biosphere and wants to preserve the livelihoods of the people as intact as possible and is committed to sustainable development. The largest German environmental organizations BUND and NABU. One of the most well-known environmental organizations Greenpeace.
Some environmental activists are also applying acts of civil disobedience and often risking fines, sometimes even their physical integrity. For sensational actions in this sense are mainly known environmental movements such as the anti - nuclear movement, Greenpeace, Sea Shepherd Conservation Society and Robin Wood. Well-known environmental activists are Al Gore, Monika Griefahn, David McTaggart and Wangari Muta Maathai.