Mangrove carbon credits pay only for the carbon a restored forest stores

Carbon Market Watch's review narrows fast. Four documents in 47 is about 8.5% ^[1], and four of the 15 that raised benefit sharing at all is about 27% ^[2]. For a buyer, the project document is usually the main record of where money went. The thing this doesn't tell you is whether the other 43 projects ^[3] shared nothing or simply wrote nothing down.

Each credit equals a set amount of carbon stored or kept out of the air ^[2], and only that sellable value has a market built around it ^[5]. What residents get from the forest is storm protection, fish nursery habitat, wood, honey and thatch ^[4]. A carbon score does not track those. The analysis describes how the two can come apart: dredged channels and replanting in tidy single-species blocks can produce a forest that "scores well on a monitoring form" but no longer resembles the one people knew how to live in ^[12].

The ecology points the same way. A 2021 global analysis of 88 mangrove restoration studies found that restored forests often recover fewer ecological functions than comparable natural forests, and the authors add that the wait can impose real short-term costs on communities living alongside them ^[14]. Those costs are specific. Protecting stored carbon can mean closing a fishing ground, and planting for biodiversity can mean species that yield no firewood or fruit ^[11]. The authors describe costs that are "immediate, local and certain" set against benefits that are "deferred, distant and uncertain" ^[13]. Between buyer and village sits a chain of verifiers, brokers, aggregators and certifiers, each taking a share first ^[8].

On the Indus delta itself, the evidence is thinner than the argument. The article uses the project to set the two kinds of value side by side ^[1][5]. It does not report the project's benefit-sharing terms, who earns from its credits, or what residents have given up. The Carbon Market Watch counts cover credit projects in general and cannot be read as a verdict on this one ^[10].

The authors argue that local knowledge should help decide which species are planted where. They cite the Sundarbans of India and Bangladesh, where stories of the forest guardian Bonbibi protect those who enter out of need and punish those who come out of greed ^[16]. Where that knowledge is sidelined, researchers have described the result as green colonialism, the article says ^[16].

At COP31 the question is adaptation money. In the authors' account, a decade of climate finance has built channels that run "toward whatever can be measured, traded and exported," and adaptation money poured in will come out where those channels already exist ^[15]. In my view the credit data support the first half of that claim well, because carbon value is documented and community benefit mostly is not ^[1]. The second half is a forecast. Whether a tripled adaptation budget ^[7] follows the carbon route depends on how it is channelled, which the authors expect COP31 in Antalya to address ^[6].