The Welsh Government was the first in the UK to declare a climate emergency and it has ambitious plans to move to a low carbon society; improve air quality and reduce waste.
Llywodraeth Cymru oedd y gyntaf yn y Deyrnas Unedig i ddatgan argyfwng hinsawdd ac mae ganddi gynlluniau uchelgeisiol i symud i gymdeithas garbon-isel, gwella ansawdd yr aer a lleihau gwastraff.