This video contains some of the most compelling and disturbing footage I’ve seen of the Gulf oil spill. It demonstrates the vastness of the spread of oil; the effects on marine mammals including whales and dolphins; and the magnitude of the burning BP is doing to try to clean up the oil. The video is long but worth the slog; the footage of whales and dolphins begins around 6:55 if you don’t have the patience for all 9+ minutes. But I’d recommend watching all of it just to get a sense for how massive this spill really is.