the commitment to deliver a significant reduction in greenhouse gas emissions from transport by reducing demand, supporting low-carbon services and infrastructure and through modal shift.
yr ymrwymiad i sicrhau gostyngiad sylweddol mewn allyriadau nwyon tŷ gwydr o drafnidiaeth drwy leihau'r galw, cefnogi gwasanaethau a seilwaith carbon isel a thrwy newid dulliau teithio.