Operation of machinery, minerals and mining, chemical production, paper and pulp and the manufacture and processing of food and drink also account for a significant proportion of emissions.
Hefyd, mae gweithredu peiriannau, mwynau a mwyngloddio, cynhyrchu cemegau, papur a mwydion a chynhyrchu a phrosesu bwyd a diod hefyd yn cyfrif am gyfran sylweddol o’r allyriadau.