Increased water vapor will provide energy by latent heat release and somewhat compensate for the loss. (realclimate.org)
A) The amplification is driven by latent heat release from condensing water vapor [2]. (judithcurry.com)
Because latent heat release in the course of precipitation must be balanced in the global mean by infrared radiative cooling of the troposphere (over time scales at which the atmosphere is approximately in equilibrium), it is sometimes argued that radiative constraints limit the rate at which precipitation can increase in response to increasing CO2. (realclimate.org)