Caribbean rainfall driven by shifting long-term patterns in the Atlantic high-pressure system, study finds

14:00 - 28 Nov 2025

A new study published in Science Advances overturns a long-standing paradigm in climate science that stronger Northern Hemisphere summer insolation produces stronger tropical rainfall. Instead, a precisely dated 129,000-year rainfall reconstruction from a Cuban cave shows that the Caribbean often did the opposite, drying during intervals of intensified summer insolation.