One more important thing that happens with the oceans is plastic pollution.
Around 9 billion tons of plastic gets into the oceans every year and kills millions of marine inhabitants on a yearly basis. Others are injured or digest plastic.
The lands get affected as well, coastal areas and many tiny islands are trashed with bottles, bags and other packaging. Land animals then get harmed too, mostly birds.
By 2050, almost every seabird species in the world will be eating plastic.