huella de carbono

== Spanish == === Etymology === Calque of English carbon footprint. === Noun === huella de carbono f (plural huellas de carbono) carbon footprint === Further reading === “huella de carbono”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025