Summary of key data sources and values used in calculations of global historical CCS rates and future changes under different habitat recovery and restoration scenarios.

*Potential global area restored is based on extrapolating the amount of successful seagrass restoration in the USA, using the relative proportion of the world's seagrass contained within the USA (∼7.1%). Given restoration efforts in the USA are likely greater than many other countries, this may over-estimate current global restoration effort.Data sources are listed in parentheses.