This applet is an ocean acidification grapher that allows user to plot changes in atmospheric C02 against ocean pH, from 1988 to 2009, in the central North Pacific.

This simulation allows students to explore the change in sea surface pH levels with increasing CO2 levels.

A short video on the causes of ocean acidification and its effects on marine ecosystems.

This video follows biologist Gretchen Hofmann as she studies the effects of ocean acidification on sea urchin larvae.

This static image from NOAA's Pacific Marine Environmental Laboratory Carbon Program offers a visually compelling and scientifically sound image of the sea water carbonate chemistry process that leads to ocean acidification and impedes calcification.

This video discusses two key signs of global change in the Southern Ocean: changes in Antarctic bottom water and ocean acidification.