01:09
Over-Consumption
Paul Ehrlich, best known for his work on population growth, cites over-consumption as one of the principle threats to the environment.
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.
03:47
: Sustaining the Environment
Achieving environmental sustainability will require a shift away from core cultural values based on production and consumption.