Phys.org  June 26, 2023 Future increases in stratospheric water vapour risk amplifying climate change and slowing down the recovery of the ozone layer. Uncertainty in modeling primarily arises from the complex processes leading to dehydration of air during its tropical ascent into the stratosphere. An international team of researchers (UK, USA – NOAA, University of Colorado, Switzerland, Germany) used a statistical-learning approach to infer historical co-variations between the atmospheric temperature structure and tropical lower stratospheric water vapour concentrations. They demonstrated that these historically constrained relationships are predictive of the water vapour response to increased atmospheric carbon dioxide and obtained an […]