Answer pops up under Conversion Result.
Write it down. Let's relate that to the length of a football field. Since there are no absolutes - we could not calculate how far light would penetrate IF there was an oil spill in that part of the ocean or even far away if the oil was carried by the currents to that point, because the oil particles would scatter the light or block it from penetrating through the water. We could not calculate how many plants, animals, and ocean and shore habitats would die - maybe even those on the Endangered Species lists that were near extinction. We could not calculate how many years the damage would continue to destroy life.