04:12
The Delicate Balance, Part 2: Impact of Chemical Contamination
One of the difficulties of predicting potential dangers to the environment is that implications to future generations are often not foreseen. Rachel Carson galvanized public and political action to prevent indiscriminate use of pesticides when her d...
02:56
Toxic Plastics
Zoologist and World Wildlife Fund senior scientist Theo Colborn talks about toxic chemicals in everyday items made of plastic.