So the largest of 5 ocean garbage patches is twice the size of Texas, and fish that dwell at 2,000 feet in the ocean are filling up on plastic.
https://www.usatoday.com/story/tech/science/2018/03/22/great-pacific-garbage-patch-grows/446405002/
“Researchers said 73% of deepwater fish in the North Atlantic Ocean had eaten particles of plastic, known as microplastics. This is among the highest percentages ever found in fish on Earth, according to a study released this week.” Even if something is not directly killing a wild animal, but it is a stressor that reduces the fitness of the animal then there is a high probability it will result in the death of that animal.
https://www.usatoday.com/story/tech/science/2018/02/21/ocean-pollution-plastic-found-73-percent-deepwater-fish-north-atlantic/359174002/
Humans have produced 18.2 trillion pounds of plastic since the 50s. That’s equal in size to 1 billion elephants.
https://www.usatoday.com/story/tech/science/2017/07/19/humans-have-produced-18-2-trillion-pounds-plastic-thats-equal-size-1-billion-elephants/491529001/