However during difficult economic times it can be tempting for governments and local authorities to focus on economic priorities and forget about environmental or social commitments.
Ond yn y cyfnod economaidd anodd sydd ohoni, gall llywodraethau ac awdurdodau gael eu temtio i ganolbwyntio ar flaenoriaethau economaidd ac anghofio am ymrwymiadau amgylcheddol neu gymdeithasol.