DDT use has been markedly decreased after we learned about all the damage it causes. Likewise, CFC’s are now only minimally used in special situations, after we learned that they were negatively affecting the ozone layer. The Hudson River clean-up by Pete Seeger and others has markedly improved the health of this river. Polio has been virtually eliminated thanks to vaccines.
Are you interested in learning more about these and other successes? And passing on this information to help others learn from our past successes? Let us know in the comments.