Atlantic Current Collapse More Likely

New research (Science Advances) that cross‑validates climate models with ocean observations finds the Atlantic meridional overturning circulation is likely to slow 42–58% by 2100—levels the authors say make collapse almost certain. A collapse would shift tropical rainfall belts, deepen sea‑level rise on Atlantic coasts by 0.5–1m, and produce severe European cooling and droughts. — If robust, this recalibrates near‑term climate risk, forcing policymakers to elevate AMOC collapse from a low‑probability tail risk to a central planning scenario for coasts, food systems and energy resilience.