Mae mawndiroedd Cymru – sydd hefyd ag enwau deniadol fel mawnogydd, mignenni neu rosdioredd – yn arwyr annisgwyl gan fod eu hiechyd yn hanfodol i ddiogelwch o ran dŵr, wrth inni baratoi am ddyfodol o hafau poethach a gaeafau gwlypach wrth i’r hinsawdd newid.
Wales’ peatlands – also attractively known as bogs, mires or moors – are an unlikely hero whose health is essential for our water security, as we prepare for a future of hotter summers and wetter winters under climate change.