02:46
Persistent Organic Pollutants
Zoologist and World Wildlife Fund senior scientist Theo Colborn talks about the global problem of persistent organic pollutants. She observes that it's a difficult problem to solve because some nations continue to use chemicals, such as DDT, even th...
01:44
Environmental Problems and Public Perception
Zoologist and World Wildlife Fund senior scientist Theo Colborn talks about public perceptions of environmental problems, suggesting that the general public is fairly knowledgeable and rational when it comes to evaluating environmental issues.