In some of the heaviest naval battles in the history of man during WWII in the Pacific, massive ship loss and of course the loss of fuel oil did not harm the ocean critters at those battle sites. The critters have done quite well. People who dive like to dive around these old relics on the ocean floor. Many of whom are still leaking oil.
Mother Nature had better watchout for the Opecker Princes. They will try to mug and rape her if she is replenishing those oil pools of ours in the Gulf of Mexico. They have to have Opec to fund terrorism in the middle east and around the world.
Remember when, two years after the dreaded Exxon Valdez, SPILL of the CENTURY occurred, the greatest salmon harvest in twenty years was reaped in those same waters?
Yeah, you're right, it takes a whole helluva lot to make a real difference ecologically. Sheesh, Al Gore begone.