It would probably be pretty alarming to learn that, in the early 1980s, scientists decided to drop off a bunch of gophers at the site of a volcanic eruption. But don’t worry, it’s not as bad as it sounds. In fact, according to a report from the University of California, this particular gopher-volcano encounter proved to be such a net positive that its effects are still being felt 43 years later. It starts with the eruption of Mount St. Helens in May of 1980. It was the most destructive volcanic event in American history, claiming 57 lives and causing staggering...