A selection of new science articles from the past week of interest to the SPARC community (a SPARC Office choice).

Tropospheric ozone in CMIP6 simulations. By P.T. Griffiths et al. in Atmospheric Chemistry and Physics.

Monitoring sudden stratospheric warmings using radio occultation: a new approach demonstrated based on the 2009 event. By Y. Li et al. in Atmospheric Measurement Techniques.

Enhanced climate response to ozone depletion from ozone‐circulation coupling. By P. Lin and Y. Ming in the Journal of Geophysical Research: Atmospheres.

Near‐global Variability of Stratospheric Water Vapor observed by SAGE III/ISS. By M. Park et al. in the Journal of Geophysical Research: Atmospheres.

Natural variability contributes to model–satellite differences in tropical tropospheric warming. By S. Po-Chedley et al. in PNAS.