Most of the meteorites in today's collections have been found in Antarctica, making it a key region for planetary science. Writing in this issue, Tollenaar, Zekollari and colleagues show that surface melt due to climate change can lead to substantial portions of current meteorites sinking into the ice, leaving bare blue ice areas void of any of these precious space rocks, making them unavailable for science.

See Tollenaar  et al. and News & Views by Righter

Boreal–Arctic wetlands are vulnerable to climate change. Writing in this issue, Yuan and colleagues analysed two decades (2002–2021) of methane emissions from this region and show a robust increasing trend, with strong inter-annual variation. This analysis used eddy covariance and chamber observations, and highlights substantial impacts of warming and vegetation activity.

See Yuan et al. and News & Views by Christensen

How behavioural plasticity can allow species to adapt to global warming remains poorly documented. Writing in this issue, Sun and colleagues find that spiders alter the mesh size of their webs to adjust to changes in prey size spectra following experimental warming.

See Hu et al. and News & Views by Vandegehuchte

The Madden–Julian Oscillation (MJO) is a mode of weekly-to-subseasonal atmospheric variability, mainly observed over the tropical Indian Ocean and tropical Pacific Ocean. The MJO strongly influences rainfall in these areas, but can also influence weather conditions in other regions of the world. Writing in this issue, Du et al. show that the MJO has become more predictable in recent decades, mainly driven by anthropogenic warming.

See Du et al. and News & Views by Jenney