Want to prevent California’s looming flood disaster? Grow a marsh.
Grist
OCTOBER 9, 2019
As they walled off rivers and created dry islands from what was previously soggy marsh, they discovered incredibly rich soil. No one foresaw that this very bounty — soil rich with organic material — would, over time, become a curse of sorts. When Jones Tract, a delta island, flooded in 2004, the damage cost $90 million to fix.
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