In Wales they work on acting for and tackling the climate and nature crises at home and abroad and influencing environmental and sustainability governance.
Yng Nghymru maent yn gweithio ar weithredu ac i fynd i’r afael â’r argyfyngau hinsawdd a natur adref a thramor, gan ddylanwadu ar gyfreithiau amgylcheddol a chynaliadwyedd.