Willapa Bay is an ideal place to farm oysters.
Vast swathes of the bay, in the northwestern US state of Washington, are exposed at low tide - making it an ideal place for oyster cultivation. It's one of the most productive oyster farming areas in the US.
But just over 10 years ago, the dynamic in the bay and other parts of the Pacific Northwest changed: Oysters started dying off, a development believed to be linked to climate change.
