Louisiana’s wetlands play a pivotal role for the state. They underpin Louisiana’s seafood industry and are home to key infrastructures, like pipes that carry oil and gas all the way up to Washington DC. On top of that, the wetlands are a natural barrier against storms and flooding. Unfortunately, rising waters are quickly destroying these essential wetlands. In an effort to stop further lands from disappearing, conservationists have created a wall…of oysters. Can these oysters save Louisiana’s precious wetlands?