By Marilyn Heiman, Special to CNN
(CNN) — The Exxon Valdez catastrophe on March 24, 1989, no longer holds the distinction of being the largest oil spill ever in U.S. waters. In sheer size, it was eclipsed last April by the disastrous well blowout in the Gulf of Mexico. But as the Pew Environment Group’s video, “Lingering Oil,” shows, the lessons of the Exxon Valdez spill are more vital than ever as we approach the first anniversary of the Deepwater Horizon explosion and contemplate drilling in the even more challenging Arctic Ocean. Read the full article