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 uma outra idéia que eu também tive, que foi levada adiante por um ecologista -- Ele basicamente fez um cálculo no qual ele considerou um litro de gasolina e disse, bem, quanto de carbono teria ali, e quanto material orgânico?