This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility: The first thing that struck us wasn't the missing trees, but the missing water. In May 2026, we visited the Sundarbans, a mangrove forest in the delta where the Ganges, Brahmaputra and Meghna rivers meet in the Bay of Bengal.
We went there expecting a story about the mangroves, the tangled, salt-tolerant forests that are supposed to be the last line of defense against cyclones and rising seas. What we found instead was a dry pond, cracked and empty, in a delta where water was never supposed to run out. A few months earlier, it had held fish that fed families.
Now it held nothing, and the family that once worked it had joined a self-help group, pooling savings from neighbors to try to make ends meet. That pond has stayed with us longer than any statistic about mangrove loss. It's a small, specific failure, but one that's occurring across an ecosystem that four million people depend on for food, income and shelter.
The Sundarbans is often discussed as an ecological story: It is the world's largest mangrove forest, a UNESCO World Heritage Site and a nursery for aquatic and terrestrial creatures. That framing isn't wrong, but it doesn't tell the whole story. Embankments built to hold back tidal rivers are failing faster than communities can repair them, and the repairs themselves are increasingly makeshift: mud and bamboo patched in ahead of the monsoon rather than proper reinforcement.
Saline water is pushing into land that used to grow rice, turning fields that once supported two harvests a year into ground that can barely manage one. Ponds that families relied on for freshwater aquaculture are turning brackish, and once they do, they don't come back. The fish that survive in brackish water aren't the ones that pay a family's school costs or living expenses; they're smaller, less valuable and everyone I spoke with felt the difference.
What people do about it is usually quiet and procedural: They form cooperatives, take on wage labor or send a child to live in a city they'd never planned on living in. This is what climate adaptation looks like when it stops being a policy and becomes a household decision made under pressure. Climate vulnerability rarely arrives as a single catastrophic event.
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