And another idea that I had as well, that was brought forward by an ecologist -- he basically did a calculation where he took one liter of gas and said, well, how much carbon it would take, and how much organic material?
E ho avuto anche un'altra idea, che è stata portata avanti da un ecologista -- Fondamentalmente, lui ha fatto un calcolo. Preso un litro di benzina, ha detto: "Quanto carbonio serve, e quanto materiale organico?"