This is NOAA’s State of the Science Fact Sheet for Ocean Acidification, published in July 2022. NOAA manages a vibrant, cutting-edge science program that focuses on research with a high relevance to society. To assist the general public in understanding the state of the science, NOAA develops State of the Science Fact Sheets about key research areas which may be of high interest to the public, and where there may be a diversity of science views within NOAA.