Ocean Acidification

Ocean acidification refers to the process of seawater pH decreasing (“increased acidity”) as the ocean absorbs CO2. As atmospheric CO2 levels have increased since pre-Industrial times (the mid-1700s), the oceans have absorbed approximately 30% of anthropogenically-produced CO2. As a consequence, ocean pH has dropped from 8.2 to 8.1. While this may not seem like a major change, the logarithmic scale of pH means that this change actually represents a 30% increase in acidity. Click here to read more. 


What are members of the WCGA doing to understand this issue?


  • The West Coast Governors Alliance has partnered with the Integrated Ocean Observing Systems (IOOS) West Coast regions (SCCOOS, CeNCOOS and NANOOS) to connect oceanographic data collected by IOOS to a broader West Coast audience through a California Sea Grant fellowship. The fellow is helping to tie OOS real-time oceanographic data and time-averaged data products into the WCGA. You can see some of those products on the West Coast Ocean Data Portal.
  • The OOS RAs and the WCGA are working with shellfish farmers and hatcheries to connect them to the real-time monitoring data that they need.