02:14
What You Don't Know...: Study of Air Pollution's Effects on 5000 School-age Children in Southern California
The California Air Resources Board studied the effects of air pollution on 5000 school-age children living in southern California communities. Researchers measured each child's lung development and function in relation to the air quality at home an...
08:58
Waste, Part I: Municipal Landfills
When it was opened in 1948, the Fresh Kills landfill on Staten Island in New York was supposed to be a temporary measure of only five years duration. Built on a wetlands with no liner to prevent groundwater contamination, the site has been kept in o...