![Veera Korhonen](https://cdn.statcdn.com/static/../CMS/contactperson/ERI3517_1705922684.png)
Environmental and conservation organizations - total number of members
This graph shows the number of members in national environmental and conservation organizations in the United States from 1950-51 to 2005-06. In 1950-51, membership amounted to 74,400 people.