Carmarthenshire County Council has declared both a climate and nature emergency and is wholly committed to the target of becoming a net zero carbon local authority.
Ym mis Chwefror 2019, cymerodd Cyngor Sir Caerfyrddin gam arloesol drwy ddatgan argyfwng hinsawdd, gan ymrwymo i ddod yn awdurdod carbon sero net erbyn 2030.