Response to Gallagher (2022)—the Australian Tidal Restoration for Blue Carbon method 2022—conservative, robust, and practical

Catherine E. Lovelock, Maria Fernanda Adame, Sabine Dittmann, Valerie Hagger, Sharyn M. Hickey, Lindsay I. Hutley, Alice Jones, Jeffrey J. Kelleway, Paul S. Lavery, Peter I. Macreadie, Damien T. Maher, Luke Mosley, Kerrylee Rogers, James Z. Sippo

Research output: Contribution to journalArticlepeer-review

Abstract

The Blue Carbon Accounting Model (BlueCAM) is a tool for tidal restoration projects established under the Tidal Restoration for Blue Carbon method (2022) of the Australian voluntary carbon market. The commentary of Gallagher discussed that BlueCAM did not subtract allochthonous carbon, which is carbon in wetland soils from external sources, either terrestrial or marine sources, from estimated net abatement. This approach was used because all organic carbon preserved in a restored wetland soil, irrespective of its source, is deposited because the wetland was restored, and thus all carbon preserved above the baseline is “additional.” As restoration projects develop, further characterization of different soil carbon fractions as suggested by Gallagher may improve BlueCAM. BlueCAM is transparent, conservative, and importantly is feasible for implementation, as well as being consistent with the Intergovernmental Panel for Climate Change guidelines for National Greenhouse Gas Inventories and the Australian legislative offsets integrity standards.

Original languageEnglish
Article numbere14027
Number of pages4
JournalRestoration Ecology
Volume31
Issue number8
Early online date28 Sept 2023
DOIs
Publication statusPublished - Nov 2023

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