The Richard T. Mamiya Science Adventure Center, the Bishop Museum has a few examples of trash sculpture describing ocean trash and animal endangerment. This image has always been the most compelling for me.
To find such dangers on an isolated atoll (see Albatrash label) demonstrates just how dangerously pervasive human impacts are.
Abandoned fishing nets make up this bird's nest. Last night on the news we heard about a successful disentanglement of a Humpback whale of Maui. Plastic and ghost nets are two of the great scourges on the sea. Three cheers for the scientists and watermen and waterwomen who help protect sea life, the citizens who keep on hauling this stuff out of the ocean, and the museums that keep sharing these messages.