The site referenced for the amount of carbon dioxide produced by a ton of coal is completely goofy. Since carbon has a molecular weight of 12 and carbon dioxide has a molecular weight of 44 (carbon 12 plus 2x16 for oxygen = 44), the weight of carbon dioxide produced by a ton of coal is 44/12 x 1 ton = 3.7 tons carbon dioxide.
So the amount of carbon dioxide produced by the 4.5 tons of coal would be 16.7 tons, which still leaves the train as the smaller carbon dioxide emitter
Edited 1 time(s). Last edit at 11/29/2020 03:13PM by Olaf Rasmussen.