In the late 20th century, the owners of oil tankers responded to public outrage over an epidemic of massive spills by cleaning up their act. (newscientist.com)
Massive spills from breaches in these ponds are documented, and many ponds are currently classified as «high hazard» by the EPA. (greenamerica.org)
Massive spills, like BP's disastrous four - million barrel belch in the Gulf of Mexico last year, though, are totally unacceptable. (fortune.com)