Another factor is that environmentalism has become deeply rooted in the U.S. national psyche. Since its extremist beginnings 30 years ago, environmentalism has matured, gaining popular support and becoming a part of the mainstream. In the process it has gained a great deal of momentum. Today, Americans of all age groups place themselves in the pro-environment camp. Active environmentalists defy stereotypes, and can be found within all demographic subgroups.
Attitudes are particularly strong among young adults.
From Sesame Street to Barney, an entire generation of Americans has grown up who cannot remember a time when environmental sensitivity was not part of their consciousness. Finally, concerns remain high because people see environmental issues as increasingly relevant to their personal health and well-being. It's not just about saving whales and rain forests anymore. No doubt the media effect tends to magnify such problems. The public does recognize that there have been improvements.