Unhappy Anniversary

Twenty years ago, the Exxon Valdez spilled 40 million litres of crude oil into Alaska's Prince William Sound. It had a catastrophic effect on the local wildlife. Depending upon whose figures you use, somewhere between a quarter of a million and half a million sea bird died, along with a thousand otters, 300 seals, 250 bald eagles, and two dozen orcas. Nobody can even begin to figure out how many fish (and their eggs) died.