California State Officials Voice Concerns Over a Federal Plan to Raise the Shasta Dam
Heightening the dam will increase the size of California's largest reservoir, but it could also create problems for local fish and wildlife populations.
Are Orcas Responsible for a Shrinking Pacific King Salmon Population?
New research suggests that Chinook salmon are being run down by a growing population of killer whales.
The Man Who Wants to Fix the Climate. Can Anyone Stop Him?
Most scientists oppose Russ George's efforts to fix the world's climate. But who's going to do something about it?