Right, so transportation is the big issue. Last I checked it was the big tankers involved in large volumes of international logistics that generate the most green house gasses. I am unaware of any technology, so-called "clean burning" oils, electric, or whatever, that solves this problem. In fact this is probably unsolvable if I think about it free trade is going to keep these boats polluting our air until we die. I'm starting to really believe that sometimes when I'm really drunk