Natural Allies

Have Earth's vibrant waterways-its streams, rivers, lakes, and oceans-become delivery systems for pollutants and poison? This program points to signs that toxic substances are overwhelming our planet's aquatic ecosystems. Viewers encounter many of the causes for this concern, including a radical dec... Full description

Corporate Author: Films for the Humanities & Sciences (Firm)
Other Authors: Films Media Group., National Geographic Television & Film.
Language: English
Published: New York, N.Y. : Films Media Group, [2010], c2004.
Series: Living machine.
Online Access: Part of the Films on Demand collection.