Coho choke on road runoff

Something’s killing Seattle’s coho salmon, and now, scientists know what it is: road runoff. Learn how they figured it out, and what cities can do to help, in my podcast for Scientific American.  

A Record Run

The Columbia River Chinook salmon run is expected to top 1 million fish this year. Learn more about the recovery of Pacific salmon stocks in the new Visionlearning blog post!