Do they even take the very waste matter that we have from food and fiber and so forth, and turn it back into soil and sequester carbon -- take carbon out of the air in the process of using our cities?
¿Es que acaso toman la materia de desperdicio que se obtiene de la comida, las fibras, etc., y la devuelven al suelo, secuestran carbono - quitan carbono del aire - mientras usamos nuestras ciudades?