There are far too many environmental threats to different areas of the world to ever count them all.  In response to these problems, thousands of environmental organizations have sprung up and are searching for solutions.

This section describes 25 of the most important and interesting environmental organizations, from Greenpeace International to the Sierra Club.

When you have finished reading the articles in this section, be sure to Test your knowledge.  Students can take these exams and have their scores automatically reported to their teachers by signing up on the Classroom Connection feature.

A bibliography for each article in this section is available on the Bibliography page.

25 Articles
Bibliography
Test

One Earth One People – A ThinkQuest site describing an environmental organization that consists of students, teachers, and others.

Environment and Nature Organizations – Yahoo's list of environmental organizations.  The groups operate in various areas throughout the world and have unique missions.

NGOs and Institutes – A list of environmental groups, non-governmental organizations, and other institutions provided by Greenpeace.