A tiny sea snail, sometimes called a sea butterfly because of how it flutters about traveling the ocean currents, is part of the diet for such valuable fish as salmon and cod off the U.S West Coast.

A new study models the journey of this delicate plankton from offshore to nearshore waters, describing how changing ocean chemistry along this journey affects their condition.

A three-year survey of the California Current System along the West Coast of the United States found persistent, highly acidified water throughout this ecologically critical nearshore habitat, with 'hotspots' of pH measurements as low as any oceanic surface waters in the world.

In the Sustainable Development Goals, the world has set forth a bold new vision for global development and committed to achieving it by the year 2030.   SDG 14 calls for us to “conserve and sustainably use the oceans, seas and marine resources for sustainable development.” While most of the targets in SDG 14 cover ocean issues and challenges that are well known to most, such as pollution and overfishing, one SDG 14 target, 14.3, may not be so familiar: 14.3 Minimize and address the impacts of ocean acidification, including through enhanced scientific cooperation at all levels. What is ocean acidification, and why is it so important to ocean sustainability and therefore to the SDG agenda?