Aurora M. Ricart, Melissa Ward, Tessa M. Hill, Eric Sanford, Kristy J. Kroeker, Yuichiro Takeshita, Sarah Merolla, Priya Shukla, Aaron T. Ninokawa, Kristen Elsmore, Brian Gaylord First published: 31 March 2021 https://doi.org/10.1111/gcb.15594 Abstract Global‐scale ocean acidification has spurred interest in the capacity of seagrass ecosystems to increase seawater pH within