FROM TOP: Tracks left by turtles making their way to the water at Ningaloo Reef


Marine Park; newborn green sea turtle on her way to the ocean at Ningaloo Reef


IN NUMBE R S 2 0 0 LI T R E S . . .


A single adult oyster can filter 200 litres of water a day (roughly a bath tub full), helping to remove excess nutrients and contaminants (National Centers for Coastal Ocean Science).


1 7 MI LLION MET R IC TONS…


In 2021, over 17 million tons of plastic entered the world’s ocean, making up 85% of marine litter. The volume of plastic pollution entering the ocean each year is expected to double or triple by 2040. (UN sustainable development goals 2022)


70%...


Since 1970, global populations of mammals, fish, birds, reptiles and amphibians have declined by an average of 70%. (worldwildlife.org)


3 B I L L IO N. . .


The number of people around the world dependent on marine and coastal biodiversity for their livelihood. (UN sustainable development goals 2022)


5 0%...


Calculating the exact percentage is difficult, but around half of all oxygen production on Earth comes from the ocean, the majority from oceanic plankton. (National Oceanic and Atmospheric Administration)


National Geographic Traveller – Coastal Collection 29


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