Am y tro cyntaf, daw trafnidiaeth, cynllunio, tai ac ynni - ynghyd â’r amgylchedd – o dan yr un fantell, er mwyn mynd i'r afael â'r argyfyngau hinsawdd a natur. Bydd hyn yn sicrhau bod newid hinsawdd ar agenda pob gwasanaeth cyhoeddus a busnes sector preifat.
For the first time, transport, planning, housing and energy are brought together, with the environment, to tackle the climate and nature emergencies, making sure climate change is firmly on the agenda for every public service and private sector business.