Official definition

This U.S. industry comprises establishments primarily engaged in promoting the preservation and protection of the environment and wildlife. Establishments in this industry address issues, such as clean air and water; global warming; conserving and developing natural resources, including land, plant, water, and energy resources; and protecting and preserving wildlife and endangered species. These organizations may solicit contributions and offer memberships to support these causes. Illustrative Examples: Animal rights organizations Natural resource preservation organizations Conservation advocacy organizations Wildlife preservation organizations Humane societies without animal shelters Cross-References.