Reblog from Algalita Blog
How much plastic is entering the ocean?
An important article has come out in Science Magazine. This is the first scientific study to systematically estimate the amount of plastic going into the ocean from land. It also highlights the geographies that contribute the most and provides insights into the relative impact of different mitigation strategies.
One thing we have learned from this article is the estimated amount of plastic going into the ocean is far greater than most previous estimates. Yet, overwhelming amount of plastic going into the ocean today pales in comparison to what scientists estimate for the future. I have been studying this area for 15 years and it’s gone up by two orders of magnitude – it is approximately one hundred times worse than what I measured in 1999. This article is stating they expect an increase of ten in the next ten years.
Habitats are normally damaged by removing valuables from them, such as animals, plants and minerals. In a complete turnaround, we are destroying our ocean habitat by inserting our valuable polymer plastics. This leads us to a clear understanding of why the status quo HAS to change by adopting a zero waste circular economy—if we don’t, it will be ten times worse than it is now, or a thousand times worse than I found it in 1999.
Plastic consumption in developing countries is increasing and because many of these countries do not have sufficient waste collection, more plastic is entering our ocean each day. We keep hearing Mismanaged Waste. That implies that burning waste in an incineration or burying it in a landfill is properly managed waste, but it’s not. We believe in Zero Waste. This so-called managed waste is composed of precious resources that need to be recovered.
The quantity of plastic in the global ocean’s five accumulator gyres has reached a level that is destroying their fragile ecosystems. It is reasonable that plastic manufacturers, who profit from externalizing the cost of dealing with their products that become waste, take some responsibility for the destruction of gyre habitat and help remove some of the tonnage of plastic causing the damage. Additionally, this would incentivize manufacturers of plastic products to design them to be easy to recycle and help create the infrastructure to process the collected plastics.
In 2013 International Coastal Cleanup Day had 648,015 volunteers from 92 countries combing coastlines around the world. In one day they gathered about 12.3 million pounds (about 6,000 tons) of trash, much of which was plastic. Even if it was all plastic, it would only be a third of what goes into the ocean each day, based on a mid-range estimate from the Jenna study. We would have to have a worldwide clean up 3 times a day, every day of the year to clean up what is ending up in the ocean, although much of the world’s coastal areas were not covered by the volunteers.
In the North Pacific Gyre this summer, Algalita researchers took plankton samples from 10 meters below the surface. In our lab, we found that every spoonful of plankton looked at under a microscope had tiny plastic fibers in it. Gyres were pristine areas where virtually nothing floated for long. The creatures there think anything floating is something to eat. The plastic is being consumed in high quantities, has no nutritional value, and is toxic. On top of all this, floating garbage in the pristine ocean is UGLY and constitutes an aesthetic. An ugly world, poisoned by our waste, is not a world we want to live in, and bequeath to our progeny.
What can we do? Single use disposables are the biggest culprit. Targeting waste from “use once and toss” plastics is the key. We can’t solve the ocean plastic problem at scale without addressing waste management in developing countries. We can change habits and behavior. People are rational if they are given rational reasons for changing their habits.
As members of the Trash Free Seas Alliance, Algalita is happy to see that this information has been made available through Science Magazine. This is an important study and we must act on the information it provides, or we will see the status quo based prediction of exponential increase in marine plastic pollution by 2025 come true.
Read the article here.