Snail Shells Record Ancient Cyclones

Researchers used radiocarbon dating plus oxygen and carbon isotope analysis on a land‑snail shell and found growth spurts tied to the immediate aftermath of named cyclones (Marcia and Debbie). If replicated across dated shells in stratified sediment, the technique could map the timing and possibly paths of storms before modern records. — Provides a new paleometeorological proxy that can improve historical cyclone frequency/intensity estimates and inform climate‑risk and adaptation policy.