05:35
Health of the Nation; Health of the Planet: Environmental Pollution--A Global Concern
Environmental protection, both within and without the borders of the United States, is a critical concern to this country. Carbon emissions that occur half a world away affect populations across the globe and contribute to global climate change. For...
03:19
What You Don't Know...: Ocean Pollution
The ocean has historically been treated as a vast dumping ground. For example, the beaches south of San Diego are closed during much of the year because high levels of pollution pose a danger to swimmers and surfers. Almost half of the homes and bus...