{"id":40037,"date":"2020-08-04T10:07:00","date_gmt":"2020-08-04T07:07:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/surface-clean-up-technology-wont-solve-ocean-plastic-problem\/"},"modified":"2020-08-04T10:07:00","modified_gmt":"2020-08-04T07:07:00","slug":"surface-clean-up-technology-wont-solve-ocean-plastic-problem","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/surface-clean-up-technology-wont-solve-ocean-plastic-problem\/","title":{"rendered":"#Surface clean-up technology won’t solve ocean plastic problem"},"content":{"rendered":"

“#Surface clean-up technology<\/a> won’t solve ocean plastic problem<\/strong>”<\/p>\n

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\"Surface<\/img>
\n Plastic bag in the ocean. Credit: Making Oceans Plastic Free
\n <\/figcaption><\/figure>\n<\/div>\n<\/div>\n

Clean-up devices that collect waste from the ocean surface won’t solve the plastic pollution problem, a new study shows.<\/p>\n

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Researchers compared estimates of current and future plastic waste with the ability of floating clean-up devices to collect it\u2014and found the impact of such devices was “very modest”.However, river barriers could be more effective and\u2014though they have no impact on plastic already in the oceans\u2014they could reduce pollution “significantly” if used in tandem with surface clean-up technology.<\/p>\n

The study\u2014by the University of Exeter, the Leibniz Centre for Tropical Marine Research, the Leibniz Institute for Zoo and Wildlife Research, Jacobs University and Making Oceans Plastic Free\u2014focusses on floating plastic, as sunk waste is difficult or impossible to remove depending on size and location.
\nThe authors estimate that the amount of plastic reaching the ocean will peak in 2029, and surface plastic will hit more than 860,000 metric tonnes\u2014more than double the current estimated 399,000\u2014by 2052 (when previous research suggested the rate of plastic pollution may finally reach zero).
\n“The important message of this paper is that we can’t keep polluting the oceans and hoping that technology will tidy up the mess,” said Dr. Jesse F. Abrams, of the Global Systems Institute and the Institute for Data Science<\/a> and Artificial Intelligence, both at the University of Exeter.
\n“Even if we could collect all the plastic in the oceans\u2014which we can’t\u2014it’s really difficult to recycle, especially if plastic fragments have floated for a long time and been degraded or bio-fouled.
\n“The other major solutions are to bury or burn it\u2014but burying could contaminate the ground and burning leads to extra CO2 emissions to the atmosphere.”<\/p>\n

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\"Surface<\/img>
\n Plastic pollution at a beach in Bali, Indonesia. Credit: Making Oceans Plastic Free
\n <\/figcaption><\/figure>\n<\/div>\n<\/div>\n

Private initiatives proposing to collect plastic from oceans and rivers have gained widespread attention recently.
\nOne such scheme, called the Ocean Cleanup, aims to clean the “Pacific garbage patch” in the next 20 years using 600m floating barriers to collect plastic for recycling or incineration on land.
\nThe new study analysed the impact of deploying 200 such devices, running without downtime for 130 years\u2014from 2020 to 2150.<\/p>\n

In this scenario, global floating plastic debris would be reduced by 44,900 metric tonnes\u2014just over 5% of the estimated global total by the end of that period.
\n“The projected impact of both single and multiple clean up devices is very modest compared to the amount of plastic that is constantly entering the ocean,” said Dr. S\u00f6nke Hohn, of Leibniz Centre for Tropical Marine Research.
\n“These devices are also relatively expensive to make and maintain per unit of plastic removed.”
\nAs most plastic enters the oceans via rivers, the authors say a “complete halt” of such pollution entering the ocean using river barriers\u2014especially in key polluting rivers\u2014could prevent most of the pollution they otherwise predict over the next three decades.<\/p>\n

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\"Surface<\/img>
\n Turtle and plastic bag. Credit: Making Oceans Plastic Free
\n <\/figcaption><\/figure>\n<\/div>\n<\/div>\n

However, due to the importance of large rivers for global shipping, such barriers are unlikely to be installed on a large scale.
\nGiven the difficulty of recycling and the negative impacts of burying or burning plastic, the study says reducing disposal and increasing recycling rates are essential to tackle ocean pollution. “Plastic is an extremely versatile material with a wide range of consumer and industrial app<\/a>lications, but we need to look for more sustainable alternatives and rethink the way we produce, consume and dispose of plastic,” said Professor Agostino Merico, of Leibniz Centre for Tropical Marine Research and Jacobs University.
\nDr. Roger Spranz, an author of the study, is a co-founder of non-profit organisation Making Oceans Plastic Free.
\n“We have developed expertise in changing behaviour to break plastic habits and stop plastic pollution at its source,” Dr. Spranz said.
\n“We are registered in Germany but the focus of our activities and collaborations is in Indonesia, the second-largest source of marine plastic pollution.
\n“Working with local partners, the implementation of our Tasini campaign in Indonesia has to date helped to prevent an estimated 20 million plastic bags and 50,000 plastic bottles from ending up in coastal areas and the ocean.”<\/p>\n

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More information:<\/strong>
\n S\u00f6nke Hohn et al, The long-term legacy of plastic mass production, Science of The Total Environment<\/i> (2020). DOI: 10.1016\/j.scitotenv.2020.141115\n <\/div>\n

\n Citation<\/strong>:
\n Surface clean-up technology won’t solve ocean plastic problem (2020, August 4)
\n retrieved 4 August 2020
\n from https:\/\/phys.org\/news<\/a>\/2020-08-surface-clean-up-technology-wont-ocean.html<\/p>\n

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
\n part may be reproduced without the written permission. The content is provided for information purposes only.<\/p><\/div>\n<\/p><\/div>\n

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“#Surface clean-up technology won’t solve ocean plastic problem” Plastic bag in the ocean. Credit: Making Oceans Plastic Free Clean-up devices that collect waste from the ocean surface won’t solve the plastic pollution problem, a new study shows. Researchers compared estimates of current and future plastic waste with the ability of floating clean-up devices to collect…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[10595,48408],"class_list":["post-40037","post","type-post","status-publish","format-standard","hentry","category-sciencee","tag-environment","tag-surface-clean-up-technology-wont-solve-ocean-plastic-problem"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/40037","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=40037"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/40037\/revisions"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=40037"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=40037"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=40037"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}