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

Validation of wind measurements of two mesosphere–stratosphere–troposphere radars in northern Sweden and in Antarctica. By E. Belova et al. in Atmospheric Measurement Techniques.

Space‐borne estimation of volcanic sulfate aerosol lifetime. By C. Li and R.C. Cohen in the Journal of Geophysical Research: Atmospheres.

The 2000‐2012 global warming hiatus more likely with a low climate sensitivity. By A. Modak and T. Mauritsen in the Geophysical Research Letters.

The Strong Stratospheric Polar Vortex in March 2020 in S2S Models: Implications for Empirical Prediction of the Low Arctic Total Ozone Extreme. By J. Rao and C.I. Garfinkel in the Journal of Geophysical Research: Atmospheres.