the.com/marshland
Ground that never decided whether to be land or water, so it became both.
means Low, soggy terrain where soil stays waterlogged, growing grasses and reeds rather than trees.
from From Old English mersc, tied to mere, a lake or pool — the language admitting from the start that this is more water than dirt.
Carbon vaultStores carbon faster than most forests on Earth.
No treesSoggy roots drown timber; grasses rule instead.
Salt or freshCoastal marshes flood with tides, inland ones don't.
Flood spongeSoaks up storm surge before it hits towns.