Using drones to limit fertilizer flow into Lake Erie

Aired: 9/9/2014 | 0:07:53 | Clip
A toxic algae bloom in Lake Erie this summer left the city of Toledo, Ohio, without drinking water for three days. Now environmentalists and farmers are working to prevent future blooms by evaluating fertilizer use in hopes of cutting excess runoff. Special correspondent Christy McDonald of Detroit Public Television reports on how drones may be a tool for maximizing crops and minimizing pollution.