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.  

Facing (and Fixing) Our Plastic Problem

Marcus Eriksen of the 5 Gyres Institute has devoted his life to studying the staggering quantity of plastic that floats in the world’s oceans. He’s also trying to get the world to pay attention to it–sometimes in surprising ways. Learn more about Eriksen’s work in my profile for Science News.