Shellfish made poisonous by toxic algae

Aired: 10/23/2013 | 0:05:22 | Clip
The Pacific Northwest is known for its seafood, but when algae blooms in coastal waters, it can release toxins that poison shellfish and the people who eat them. Katie Campbell of KCTS in Seattle reports on the growing prevalence and toxicity of that algae, and how scientists are studying a possible link to climate change.