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

Comparison of the CMAM30 data set with ACE-FTS and OSIRIS: polar regions. By D. Pendlebury et al. Atmospheric Chemistry and Physics.

Tropical sources and sinks of carbonyl sulfide observed from space. By N. Glatthor et al. in Geophysical Research Letters.

A breath of fresh air. [Editorial]. Nature.

Discussion papers – open for comment

A Joint data record of tropospheric ozone from Aura-TES and MetOp-IASI. By H. Oetjen et al in Atmospheric Chemistry and Physics Discussions.