The good news is that newly discovered bacteria biodegrade oil in the oceans, and have been chowing down on the oil spilled from the Deepwater HorizonĀ (Earth and Sky, NPR, PBS, SFGATE) and from oil seeps for millions of years.
While it’s unexpected and wonderful that bacteria are biodegrading the oil, is begs the question:
Do we want to fill the seas with oil and oil-eating bacteria or oceans of clean water, coral, oysters, fish, turtles, and dolphins?
And how quickly can they consume the 5.1 million barrels that gushed into the Gulf at a rate of 60,000 barrels per day for 85 days begining April 20, continuing thru May and June, and ending July 15, 2011?
I suspect it will take more than a few weeks, months, or years.
And do those bacteria break down dispersants?
John Ehrenfeld defines “Sustainability” as “Flourishing.” Because they are small and short-lived, shrimp can handle a higher level of toxics than say dolphins, turtles, etc. We will know the Gulf is clean when there are flourishing populations of dolphins, turtles, and larger and longer-lived fauna, and when they have lower concentrations of heavy metals and petrochemicals in their tissues. Continue reading