I'd like to point out a great, succinct analysis of
the Gulf of Mexico's oil ecology on BoingBoing, which neatly cuts down Forbes' attempt to downplay the scale of the catastrophe:
Smaller amounts of oil, released a slower rate, into a local ecosystem that has evolved in tandem with the ongoing natural seep isn't as big of a deal as a whole metric crap-ton of oil dumped quickly into a larger area of ocean. (Just like smaller amounts of Corexit oil dispersant can be legitimately safe, even though we don't know anything about the toxicity of the product when used in huge quantities.)
Maggie Koerth-Baker hasn't written explicitly on permaculture, as far as I know, but the idea that too much of anything is pollution, even for a natural substance, is an important point that many people miss. It's good to see this kind of thinking from a wider variety of sources.
"the qualities of these bacteria, like the heat of the sun, electricity, or the qualities of metals, are part of the storehouse of knowledge of all men. They are manifestations of the laws of nature, free to all men and reserved exclusively to none." SCOTUS, Funk Bros. Seed Co. v. Kale Inoculant Co.