Hungary toxic sludge reaches Danube River: Top 10 environmental disasters worldwide
7. Exxon Valdez oil spill, 1989
The Exxon Valdez spill, which happened when an oil tanker ran aground off the coast of Alaska, is not one of the largest spills in history, but it is one of the worst in terms of environmental impact. Eleven million gallons of oil were spilled into Prince William Sound. It happened in a fragile area with an abundance of wildlife and unspoiled land that hasn’t fully recovered.