Oh, it's quite easy. If you'll consult this slick marketing diagram I have over here, as you can plainly see, the carbon coming out of our incinerator is brightly colored and can be plainly seen to be smiling broadly. It's very positive carbon.
Whereas this carbon you see coming out of the tailpipe of this car is colored ominously darkly, is clearly wearing an angry expression, and for some reason, is substantially "spikier" carbon than the stuff coming out of our environmentally-responsible incinerator. Much more dangerous stuff. You wouldn't want to meet this carbon in a dark alley at night!
Whereas this carbon you see coming out of the tailpipe of this car is colored ominously darkly, is clearly wearing an angry expression, and for some reason, is substantially "spikier" carbon than the stuff coming out of our environmentally-responsible incinerator. Much more dangerous stuff. You wouldn't want to meet this carbon in a dark alley at night!
It's all quite simple, really.