As you think of what are the alternatives to this system -- it's important to find alternatives because it turns out that the U.S. is dwindling in its petroleum reserves, but it is not dwindling in its coal reserves, nor is China. There are huge coal reserves that are sitting out there, and we've got to start thinking of them as biological energy, because if we keep treating them as chemical energy, or engineering energy, we're going to be in deep doo-doo.
Pensiamo alle alternative. È importante trovare alternative, perché pare che gli USA stiano finendo le proprie riserve di petrolio, ma non quelle di carbone. Né la Cina. Ci sono enormi riserve di carbone che sono pronte là fuori, e dobbiamo iniziare a pensarle come energia biologica, perché se continuiamo a trattarle come energia chimica, o energia ingegneristica, finiremo nei guai.