In 2021 Welsh homes accounted for approximately 10% of all greenhouse gas emissions in Wales (noting emissions driven by their electricity consumption are counted separately).
Yn 2021, roedd cartrefi Cymru yn cyfrif am oddeutu 10% o'r holl allyriadau nwyon tŷ gwydr yng Nghymru (nodir y caiff allyriadau a yrrir gan eu defnydd o drydan eu cyfrif ar wahân).