You would have to be pretty "green" to complain about that amount of smoke.

I never understood why automobiles are held to such an ultimate standard when agricultural, construction, and oceanic tankers have either apparently no standards at all or they are extremely relaxed. Commercial Airlines?

I'm sure any diesel nut has seen this link, but just imagine the NOx and PM being belched out by this beast: YouTube - Wärtsilä-Sulzer RTA96-C the biggest engine in the world