As GHGs and air pollutants largely derive from common sources, policy designed to reduce GHGs can have co-benefits for public health and air quality, in particular in urban areas, that could offset the near-term costs of GHG mitigation.
Ós rud é gur as foinsí coitianta a thagann an chuid is mó de GCTanna agus an chuid is mo de na truailleáin aeir, d'fhéadfadh comhthairbhí do shláinte phoiblí agus do cháilíocht an aeir a bheith ag baint le beartas a d'fhéadfadh GCTanna a laghdú, go háirithe i gceantair uirbeacha, ar comhthairbhí iad a d'fhéadadh na costais ghearrthéarmacha ar mhaolú GCT a fhritháireamh,.