Deep Ocean Water Is Making Coastal Seas Acidify Much Faster, Scientists Say

Updated on 01 Dec 2025 | Category: Science

New research reveals that coastal upwelling regions are acidifying much faster than expected as deep CO₂-rich waters rise to the surface. This accelerated change threatens marine ecosystems, major fisheries, and coastal communities worldwide.

Scientists have found that coastal seas are acidifying far faster than previously believed — particularly in regions where strong upwelling currents pull deep, CO₂-rich waters toward the surface. New research from the University of St Andrews shows t...