Another is that while oil spills are bad, they are also temporary. This cleanup is slow, but the Earth is patient. Select bacteria thrive on the stuff, even deep underground. Almost as if they had evolved to use it as a permanent food source...
Drillers reopening old wells to dispose of salt water have found oil in assumed to be depleted fields.
“This cleanup is slow, but the Earth is patient.”
Heh - heh ... paraphrasing from one of my favorite movies “High Road to China”.