marshland

“It’s got a river that runs through it. It’s got its own hills, it’s got fields, it’s got forest, it’s got marshland,” Cotton says.

These new findings build on previous studies that have measured the amount of carbon in the marshland's mud.

Search teams combed the barren marshland on foot near to where he was found while a helicopter and drones searched for any clues on how and why he got there.

Its marshlands store large amounts of carbon, helping to mitigate climate change.

Focusing instead on strengthening levees in the Delta and restoring tidal marshlands, he said, would ensure that water is “delivered to the doorstep of your existing pumps reliably.”