Additionally, no independent links could be found between environmentally friendly behaviours and ethnicity, religious beliefs, or having a limiting long-term illness.
Yn ogystal, ni ellid dod o hyd i unrhyw gysylltiadau annibynnol rhwng ymddygiadau ecogyfeillgar ac ethnigrwydd, credoau crefyddol, neu fod â salwch cyfyngus hirdymor.