DDT found in deep-sea fish raises troubling concerns for the food web

One question has been key for several years to understanding how much we should worry about the hundreds of tons of DDT dumped off the coast of Los Angeles: How exactly did this decades-old pesticide—a toxic chemical that spreads across the seafloor 3,000 feet underwater—reenter the food web? Now, in a long-awaited study, researchers have … Read more