![Rolling Coal: Conservatives who show their annoyance with liberals, Obama, and the EPA by blowing black smoke from their trucks. Rolling Coal: Conservatives who show their annoyance with liberals, Obama, and the EPA by blowing black smoke from their trucks.](https://compote.slate.com/images/e38be41d-84d4-4f08-8233-d7b3634f846f.jpg)
Rolling Coal: Conservatives who show their annoyance with liberals, Obama, and the EPA by blowing black smoke from their trucks.
![State of Colorado Set to Pass Bill to Stop Diesel Trucks from “Rolling Coal” | Plus Automotive Network State of Colorado Set to Pass Bill to Stop Diesel Trucks from “Rolling Coal” | Plus Automotive Network](https://rpmcanada.ca/wp-content/uploads/2017/06/8ff3777354eff00f6bd1d20ba7c5c3f7-800x500_c.jpg)
State of Colorado Set to Pass Bill to Stop Diesel Trucks from “Rolling Coal” | Plus Automotive Network
![Rollin' Coal: Trucks Modified to Spew Clouds of Smoke Mark the Most Pointless Anti-Environmentalist Movement Ever Rollin' Coal: Trucks Modified to Spew Clouds of Smoke Mark the Most Pointless Anti-Environmentalist Movement Ever](https://inhabitat.com/wp-content/blogs.dir/1/files/2014/07/Rollin-Coal-1-600x449.jpg)
Rollin' Coal: Trucks Modified to Spew Clouds of Smoke Mark the Most Pointless Anti-Environmentalist Movement Ever
![Black-smoke-belching pick-ups built by anti-environmentalists who are 'rolling coal' | Daily Mail Online Black-smoke-belching pick-ups built by anti-environmentalists who are 'rolling coal' | Daily Mail Online](https://i.dailymail.co.uk/i/pix/scaled/2014/07/07/article-2683735-1F75AC5C00000578-16_636x382.jpg)