Large volumes of air rise over the equator where most solar radiation is directed, creating a demand for colder air from higher latitudes. This however, is an oversimplification of the cause of global weather.
Large volumes of air. by Paul McGowan.Imagine the amount of air a full 100 piece symphony orchestra can move when they get loud. Now imagine trying to reproduce that same air movement, scaled to fit your room, with a pair of bookshelf loudspeakers.

The organization I run rents a large, old theater for once-a-week film screenings. Problem: the air conditioning is broken, and the theater doesn't have the capital to fix it before the summer ends.

Air volumes and air humidity are closely related. With normal ventilation.This is exactly what the problem is with over-dimensioning: even modern devices only have a limited control range and feature a certain minimum air flow rate (this is higher with larger units).

As seen in Table 2, large volumes of air are used by the planes engines during idling of engines while waiting at the terminal and taxiing to and from the runway. All trucks combined use approximately 139 pop-days of air per day.