A note on an AGU spring meeting discussion of the role of atmospheric water vapour in climate and atmospheric composition (original) (raw)

This note summarizes discussions from an AGU spring meeting focused on the role of atmospheric water vapor in climate and atmospheric composition. Key findings include unexplained upward trends in stratospheric water vapor prior to the late 1990s, a notable cooling at the tropopause in 2001 linked to significant drying, and the impact of water vapor changes on atmospheric general circulation. The meeting highlighted vital research questions regarding aerosol effects on water vapor, future methane concentrations, and pathways for moisture transfer from the upper troposphere to the stratosphere.