GOV.WALES uses cookies which are essential for the site to work. Non-essential cookies are also used to tailor and improve services. By continuing to use this site, you agree to our use of cookies.
You are here:
Noun, Masculine, Singular
nwyon tŷ gwydr
Mae cyflenwi ynni, busnes a phrosesau diwydiannol yn parhau i fod yn brif sbardun allyriadau nwyon tŷ gwydr.