Costs and Carbon Benefits of Mangrove Conservation and Restoration: A Global Analysis

Catarina C. Jakovac*, Agnieszka Ewa Latawiec, Eduardo Lacerda, Isabella Leite Lucas, Katarzyna Anna Korys, Alvaro Iribarrem, Gustavo Abreu Malaguti, R.K. Turner, Tiziana Luisetti, Bernardo Baeta Neves Strassburg

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)

Abstract

Blue carbon in mangroves represents one of highest values of carbon stocks per hectare, and could play an important role in climate change mitigation. In this study we estimated the carbon prices needed to promote mangrove conservation and restoration under mechanisms of payment for ecosystem services (PES). We mapped the remaining and deforested mangroves across the globe in 2017, and crossed this information with carbon stocks in the biomass and soil and with land opportunity and restoration costs. In accordance with previous studies we found that Southeast Asia holds the largest opportunities for blue carbon programs to support conservation and restoration. Conserving remaining mangroves would avoid the release of up to 15.51 PgCO2 to the atmosphere, and could be achieved at carbon prices between 3.0 and 13.0 US$ per tCO2 for 90% of remaining mangroves. Restoring mangroves can sequester up to 0.32 PgCO2 globally. Carbon prices between 4.5 and 18.0 US$ per tCO2 could support the restoration of 90% of deforested mangroves. Such prices, however, may not apply to contexts of high-profit alternative land-uses. In such contexts, the valuation of co-benefits and the combination of carbon-based mechanisms and sustainable management may be a viable pathway.

Original languageEnglish
Article number106758
JournalEcological Economics
Volume176
DOIs
Publication statusPublished - Oct 2020

Keywords

  • Break-even price
  • Deforestation
  • Global mangrove map
  • Land opportunity cost
  • Map of worlds
  • Payment for ecosystem services
  • REDD+

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