Ko te pepa casless he pepa motuhake kaore i te kiko waro, ka taea te tuhi me te whakakii me te kore e whakamahi i te mangumara. Ko te pepa Carbon-kore te taiao, he ohaoha, he pakari hoki, a, he rangahau pūtaiao, maatauranga, te tiaki rongoa me etahi atu mara.