More eddying of subtropical western boundary currents boosts stratification and cools shelf seas

Nature Climate Change, Published online: 15 April 2026; doi:10.1038/s41558-026-02599-9This work shows that increased eddies accelerate surface warming in the Agulhas Current while also boosting hidden upwelling that cools the current, and adjacent shelf seas, at depth. Similar trends are expected for all subtropical western boundary currents, even if volume transports remain steady.