We all know it. The Ork race is basically just the 40k version of 'Green' activists (terrible pun intended). They clearly just go around up-cycling and converting scrap into ingenious inventions they can then put back into everyday use. They also like to mob together and get really angry and wage waaaaghhh on those other environmentally insensitive races. Every time a space marine drop pod lands it leaves craters! and those Eldar blasting things with their psychic energies.. the poor old Orks have their work cut out for them.
Who else will stand with me and help these poor environmentally friendly green eco warriors achieve victory over their planet destroying foes??