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The Delicate Balance, Part 2: Enduring Effect of Contaminates
03:39

The Delicate Balance, Part 2: Enduring Effect of Contaminates

Despite the fact that much clean-up has been done since the 1960s, the Great Lakes still contain fish that don't reach sexual maturity because of endocrine disrupting chemicals. A study of children whose mothers had eaten fish from the Great Lakes c...

Toxic Plastics
02:56

Toxic Plastics

Zoologist and World Wildlife Fund senior scientist Theo Colborn talks about toxic chemicals in everyday items made of plastic.

Waste, Part I: Material Recycling Facilities
06:41

Waste, Part I: Material Recycling Facilities

The development of technology for handling co-mingled wastes has changed the one-time altuistic gesture of recycling into a symbiotic relationship between environmental needs and profitability.

The Metal Plating and Finishing Industry: Electroplating: Metal Finishes and Application Processes
09:39

The Metal Plating and Finishing Industry: Electroplating: Metal Finishes and Application Processes

Once the part has been cleaned, it is ready to receive the electroplating. One way of plating large quantities of small workpieces at the same time is by barrel plating. In this process, large, plastic barrels are filled with quantities of workpie...