http://www.businessinsider.com/conservatives-purposely-making-cars-spew-black-smoke-2014-7
There are some truly insane people in this world.
"Coal Rollers" are diesel trucks modified with chimneys and equipment that can force extra fuel into the engine causing dark black smoke to pour out of the chimney stacks. These modifications are not new, but as Slate's Dave Weigel pointed out on Thursday, "rolling coal" has begun to take on a political dimension with pickup drivers increasingly viewing their smokestacks as a form of protest against environmentalists and Obama administration emissions regulations.
There are some truly insane people in this world.