Idiot Coal Rollers Are Smoking Out Environmentalists, Literally

"Anti-environmentalists have found a new medium for exhausting their anger: exhaust. Literally.

Some truck enthusiasts are intentionally producing copious amounts of diesel exhaust, spewing black smoke into the air as a form of political protest. It's called "rolling coal." Vocativ covered the subculture in an article last month, reporting "coal rollers" can spend thousands of dollars altering their rides to produce ever greater amounts of smoke." *

http://youtu.be/09BZ6ikBZ54