Salmon need cold water. This general statement is something I’ve been hearing since I first began reporting on these amazing migrating fish years ago. Cold water is a fact of life for salmon, known for their long travels up and down streams, out to saltwater and back. But colder is not always better. Questions about why salmon need cold water and how their habitat might grow too warm or too cold led me into an in-depth reporting project. I ended up talking to some of the leading experts on the […]