>> Didn't they say it could run on sustainable fuel? The same can be said about my car/boat/monster truck/jet fighter and anything else that pumps out carbon.

>> Didn't they say it could run on sustainable fuel? The same can be said about my car/boat/monster truck/jet fighter and anything else that pumps out carbon. The average jet engine can be tuned to run rather well on olive oil. "Can run on X" is a far cry from "actually runs on X".