In May 2020, the Welsh Government commissioned the Centre for Climate Change and Social Transformations (CAST) and YouGov to undertake a survey of people living in Wales.
Ym mis Mai 2020, comisiynodd Llywodraeth Cymru y Ganolfan Newid Hinsawdd a Thrawsnewid Cymdeithasol (CAST) a YouGov i gynnal arolwg o bobl sy'n byw yng Nghymru.