The phrase "holding capacity" refers to the maximum amount of something that can be contained or held by a particular object, space, or system. Full definition
Furthermore, even though evaporation is increasing, it's not increasing as quickly as the water holding capacity of the atmosphere. (climaterealityproject.org)
Accordingly, changes in temperature and the water holding capacity of the atmosphere are more robust than changes that depend on winds in any way. (link.springer.com)