Reflections on weather and climate research. By W. Cai et al. in nature reviews: earth & environment.

Future changes in Northern Hemisphere summer weather persistence linked to projected Arctic warming. By K. Kornhuber and T. Tamarin-Brodsky in the Geophysical Research Letters.

Does Lower‐Stratospheric Shear Influence the Mesoscale Organization of Convection? By T.P. Lane in the Geophysical Research Letters.

Contrast relationships between Arctic Oscillation and ozone in the stratosphere over the Arctic in early and mid‐to‐late winter. By M. Liu and D. Hu in the Journal of Geophysical Research: Atmospheres.

On the best locations for ground-based polar stratospheric cloud (PSC) observations. By M. Tesche, P. Achtert, and M.C. Pitts in Atmospheric Chemistry and Physics.

Discussion papers – open for comment:

Consistency of total column ozone measurements between the Brewer and Dobson spectroradiometers of the LKO Arosa and PMOD/WRC Davos. By J. Gröbner et al. in Atmospheric Measurement Techniques.

Intercomparisons, Error Assessments, and Technical Information on Historical Upper-Air Measurements. By N. Imfeld et al. in Earth System Science Data.

The stratospheric Brewer–Dobson circulation inferred from age of air in the ERA5 reanalysis. By F. Ploeger et al. in Atmospheric Chemistry and Physics.