We'll use biofuels. Problem solved. Transport... We don't need oil anymore. "Well, what if we grew the biofuels for a road on the grass verge at the edge of the road? How wide would the verge have to be for that to work out?
Bien, ¿qué pasa si cultivamos biocombustibles para una carretera en el margen de la carretera? ¿Cuán ancho tiene que ser ese margen para funcionar?