If professor Ray McAllister could perfect his time-machine technology… he’d send a note back to his 1972 self that simply read: “Tire reef. Dont!”

Back in the heady days of disco, cocaine, and environmental research, professor McCallister and a team of fellow oceanic engineers decided something needed to be done to help promote new coral activity and underwater wildlife growth. The solution? Strap tens of thousands of old tires together and sink them off the coast of Florida.

The tires were unloaded there in 1972 to create an artificial reef that could attract a rich variety of marine life, and to free up space in clogged landfills. But decades later, the idea has proved a huge ecological blunder.

Little sea life has formed on the tires. Some of the tires that were bundled together with nylon and steel have broken loose and are scouring the ocean floor across a swath the size of 31 football fields. Tires are washing up on beaches. Thousands have wedged up against a nearby natural reef, blocking coral growth and devastating marine life.

“The really good idea was to provide habitat for marine critters so we could double or triple marine life in the area. It just didn’t work that way,” said Ray McAllister, a professor of ocean engineering at Florida Atlantic University who was instrumental in organizing the project. “I look back now and see it was a bad idea.”

Give the guy credit for admitting he was wrong, I suppose. But clearly every member of that team needs to strap on a speedo and snorkel and commence to floating that 30 year old science experiment back to the surface. At least we now know a little more about tires. Can’t burn’em. Can’t drown’em. Those things are strong.