Because humans imagine the oceans as infinite, warns this cry for concern, we dump pollutants there–pollutants like organohalogens, which the narrator characterizes as "immortal synthetic poisons." Using the Great Lakes as case studies, the program contrasts heedless industrial pollution and innovative green technologies. Bonus program: a look at the pros and cons of building China's Three Gorges Dam. Grades 6–12. Closed captioned. Color. 27 minutes. Discovery School. ©1998.
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