The impact of plastic pollution on the marine life is unmistakable in this video taken by diver Jules Casey near Blairgowrie, Victoria.

A coffee cup with the words “Don’t worry be happy” written on it was seen drifting by some baby seahorses, the survival of which requires clean, pollution-free waters, according to Casey.

Less than one in a thousand seahorse fry will live long enough to become an adult, the Seahorse Trust said. Credit: onebreathdiver via Storyful