California Ocean Acidification Action Plan

The Ocean Protection Council , in cooperation with the California Ocean Science Trust, is undertaking development of a State of California Ocean Acidification Action Plan (Action Plan). This policy and management action plan will be one of the first of its kind, and is being developed within the framework of the International Alliance to Combat Ocean Acidification (OA Alliance), a global partnership founded in 2016 to assist governments in taking meaningful action to anticipate, mitigate, and adapt to the significant changes to the chemistry of the world’s oceans that are now occurring as a result of carbon dioxide (CO2) emissions.

Continuing on the same path as the state’s bold leadership on climate change, the Action Plan will provide a concrete vision and tractable actions for making progress in better understanding and addressing this critical threat to the productivity, ecology, and economic benefits derived from the state’s coastal and nearshore marine ecosystems. In so doing, it may serve as a model for other jurisdictions seeking to take action on ocean acidification.

Development of the Action Plan involves broad consultation with policy-makers, managers, experts, and interested parties across California and the OA Alliance and will draw on key resources (such as the OA Alliance’s OA Action Plan Toolkit). Consultation with the recently established Ocean Acidification and Hypoxia Science Task Force, per Assembly Bill 2139, will help ensure the Action Plan is scientifically robust and feasible.

A 30-day public comment period will occur August 1 through 31, 2018. Final adoption of the Action Plan is anticipated at the Ocean Protection Council October 25, 2018 meeting.

Timeline and Opportunities for Engagement

August 1 – August 31, 2018: 30-day public comment period on draft OA Action Plan

August 21, 10:00 AM – 11:00 AM (PST): Public informational webinar, see below for additional information on how to register

September 12-14, 2018: Governor’s Global Climate Action Summit: Draft OA Action Plan highlights announced, San Francisco, CA

October 25, 2018: OPC Public Meeting: Scheduled adoption of the OA Action Plan, Santa Cruz, CA (webcast)

December 3-14, 2018: United Nations Climate Change Conference: Share OA Action Plan, Katowice, Poland

Informational Webinar

Ocean Protection Council staff, in coordination with the Ocean Science Trust, hosted an informational public webinar on Tuesday, August 21, 10:00 AM – 11:00 AM (PST) to provide an overview of the draft Action Plan and provide an opportunity for members of the public to ask questions and provide input.

Please view the webinar recording here

Jenn Phillips’ Presentation here

Public Comment Period Open: August 1 – 31, 2018

Download the draft here

All comments should be submitted by email to: Questions can be directed to Ocean Protection Council’s Climate Change Policy Adviser, Jenn Phillips at:


Ocean Protection Council
Jenn Phillips, Climate Change Policy Adviser
Whitney Berry, Ocean Protection Council

Ocean Science Trust
Leila Sievanen, Ocean Science Trust
Hayley Carter, Ocean Science Trust
Liz Whiteman, Ocean Science Trust

Liz Chornesky, Sustainability Science & Policy


California’s Action Plan Overview
California’s Ocean Acidification and Hypoxia Science Task Force
OA Alliance’s Action Plan Toolkit
International Alliance to Combat Ocean Acidification

Jenn Phillips,, Ocean Protection Council