As the natural environment of many Welsh-speaking areas makes them pleasant places to live, this could lead to an influx of population and capital, and keep more of the local population in the area.
Neu, gall gwariant ar fentrau amgylcheddol wneud yr ardal yn lanach ac yn fwy croesawgar i ymwelwyr, a all roi hwb i dwristiaeth a llesiant trigolion ac ymwelwyr.