An unhealthy sea butterfly, or pteropod, showing effects of ocean acidification including ragged, dissolving shell ridges on upper surface, a cloudy shell in lower right quadrant, and severe abrasions ...

Ocean acidification is the worldwide reduction in the pH of seawater as a consequence of the absorption by the ocean of large amounts of carbon dioxide (CO2) emitted to the atmosphere mainly from ...

The acidification of the Earth's oceans is expected to triple by 2100, and could lead to major impacts on biodiversity across U.S. coastlines. With climbing atmospheric CO2, huge amounts of this gas ...

Scientists have known for decades that soaring atmospheric carbon dioxide emissions are causing changes in ocean chemistry, threatening marine life and ecosystems. In June 2025, a study found that ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Climate change is changing the chemistry of the Earth’s oceans ...

Ocean acidification is the lowering of seawater pH over time, as the ocean absorbs carbon dioxide (CO 2) from the atmosphere. The pH scale is used to measure how acidic or basic a water-based solution ...