Scientists call such short - lived hazards «flow pollutants,» as opposed to «stock pollutants» like CO2 which accumulate over time. (yaleclimateconnections.org)
Savings accumulate over time as older equipment and appliances are replaced with newer, more efficient models and older buildings are retired and replaced with new construction. (energy.ca.gov)
However, keep in mind that because interest accumulated over time you may have to pay more in the long term. (usstudentloancenter.org)