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?