Environmental Working Group
From their website: "The Environmental Working Group’s mission is to empower people to live healthier lives in a healthier environment. With breakthrough research and education, we drive consumer choice and civic action." They inform us as to what's really in our drinking water, what foods are most important to buy organic, which cosmetics and sunscreens are safe to use, etc. They are an essential resource!
From their website: We envision a world where all students experience and understand how nature sustains life and are inspired to live in ways that benefit people and the environment. All schools can do this by committing to cultivating ecological literacy through transformational experiences in the cafeteria, classroom, and garden that educate students about the food system and its connection to the environment.