{"id":23508,"date":"2022-10-12T09:00:00","date_gmt":"2022-10-12T13:00:00","guid":{"rendered":"https:\/\/oceana.org\/?p=23508"},"modified":"2022-09-27T12:55:33","modified_gmt":"2022-09-27T16:55:33","slug":"ask-dr-pauly-why-are-plastics-in-the-ocean-so-harmful","status":"publish","type":"post","link":"https:\/\/oceana.org\/blog\/ask-dr-pauly-why-are-plastics-in-the-ocean-so-harmful\/","title":{"rendered":"Ask Dr. Pauly: Why are plastics in the ocean so harmful?"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full is-resized\"><img decoding=\"async\" data-src=\"https:\/\/oceana.org\/wp-content\/uploads\/sites\/18\/daniel_pauly_headshot_low.jpg\" alt=\"\" class=\"wp-image-18156 lazyload\" width=\"166\" height=\"186\" data-srcset=\"https:\/\/oceana.org\/wp-content\/uploads\/sites\/18\/daniel_pauly_headshot_low.jpg 600w, https:\/\/oceana.org\/wp-content\/uploads\/sites\/18\/daniel_pauly_headshot_low-358x400.jpg 358w\" data-sizes=\"(max-width: 166px) 100vw, 166px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 166px; --smush-placeholder-aspect-ratio: 166\/186;\" \/><\/figure><\/div>\n\n\n<p><em>Dr. Daniel Pauly is the founder and principal investigator of the Sea Around Us project at the University of British Columbia&#8217;s Institute for the Oceans and Fisheries, as well as an Oceana Board Member. <\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>Until the 1950s, the animals on Earth, including marine animals, primarily only had to deal with debris and trash in the form of organic substances or objects that were produced by, or derived from, plants or animals. This included wood, fiber, rotting flesh, bones, or other materials that could be degraded by bacteria and fungi, and thus turned back into nutrients or converted into harmless minerals. For eons, these microscopic organisms recycled organic matter on Earth and in our oceans, and quite literally kept our world clean.<\/p>\n\n\n\n<p>This changed radically with the advent of plastics. Chemists consider plastics \u201corganic\u201d because, like most living substances, they consist of chains of carbon atoms. However, most plastics are <a href=\"https:\/\/www.ciel.org\/plasticandclimate\/\">petroleum-derived<\/a>, made from long chains of carbon atoms which have shapes bacteria never encountered in their 3 billion years of existence. Thus, every piece of plastic we throw away, from plastic bags to disposable razors to empty detergent bottles, could remain with us for centuries or longer.<\/p>\n\n\n\n<p>Plastics can\u2019t be burned safely because some of their carbon chains, under high temperatures, link up and form Frankenstein compounds, such as dioxins, which are highly toxic to all life, including humans<a href=\"#_edn1\" id=\"_ednref1\">[i]<\/a>.&nbsp;And most plastics cannot safely be recycled because of the thousands of added chemicals \u2013 many of which are toxic and make their way into recycled products.<a href=\"#_edn2\" id=\"_ednref2\">[ii]<\/a><\/p>\n\n\n\n<p>Thus, while you can recycle <a href=\"https:\/\/www.aluminum.org\/industries\/production\/recycling\">aluminum<\/a> infinitely, you can only downcycle plastics, i.e., turn high-quality plastics, like the ones used to make disposable spoons, into low-quality plastics, like the kind used to make park benches (and we don\u2019t need that many park benches).<\/p>\n\n\n\n<p>However, it is <a href=\"https:\/\/advances.sciencemag.org\/content\/3\/7\/e1700782\">far more likely<\/a> that plastic waste will end up in a landfill or in the environment, including ocean ecosystems<a href=\"#_edn3\" id=\"_ednref3\">[iii]<\/a>. And when dealing with the oceans, it is useful to distinguish between two kinds of plastic pollutants: macro- and microplastics.<\/p>\n\n\n\n<p>Macroplastics make up the junk that we see floating at or near the surface of the sea, where they have formed gigantic and steadily increasing \u201cgarbage patches\u201d in the Atlantic, Indian, and Pacific oceans. This form of pollution is a growing threat to <a href=\"https:\/\/indicit-europa.eu\/cms\/wp-content\/uploads\/2017\/07\/Gall-Thompson-2015-MarPollBull_Impact-of-debris-on-marine-life.pdf\">seabirds<\/a>, <a href=\"https:\/\/usa.oceana.org\/publications\/reports\/choked-strangled-drowned-plastics-crisis-unfolding-our-oceans\">sea turtles, whales, and other marine mammals<\/a> because they may mistake macroplastics for food items and die in agony with bellies full of bulking, indigestible trash<a href=\"#_edn4\" id=\"_ednref4\">[iv]<\/a>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img decoding=\"async\" data-src=\"https:\/\/oceana.org\/wp-content\/uploads\/sites\/18\/PlasticFromLoggerheadFecalMatter_Florida_Gumbo-Limbo-Nature-Center-Inc-1024x768.jpg\" alt=\"\" class=\"wp-image-23495 lazyload\" width=\"609\" height=\"457\" data-srcset=\"https:\/\/oceana.org\/wp-content\/uploads\/sites\/18\/PlasticFromLoggerheadFecalMatter_Florida_Gumbo-Limbo-Nature-Center-Inc-1024x768.jpg 1024w, https:\/\/oceana.org\/wp-content\/uploads\/sites\/18\/PlasticFromLoggerheadFecalMatter_Florida_Gumbo-Limbo-Nature-Center-Inc-400x300.jpg 400w, https:\/\/oceana.org\/wp-content\/uploads\/sites\/18\/PlasticFromLoggerheadFecalMatter_Florida_Gumbo-Limbo-Nature-Center-Inc-768x576.jpg 768w, https:\/\/oceana.org\/wp-content\/uploads\/sites\/18\/PlasticFromLoggerheadFecalMatter_Florida_Gumbo-Limbo-Nature-Center-Inc-1536x1152.jpg 1536w, https:\/\/oceana.org\/wp-content\/uploads\/sites\/18\/PlasticFromLoggerheadFecalMatter_Florida_Gumbo-Limbo-Nature-Center-Inc.jpg 2048w\" data-sizes=\"(max-width: 609px) 100vw, 609px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 609px; --smush-placeholder-aspect-ratio: 609\/457;\" \/><figcaption>Plastic found in sea turtle fecal matter. In 2020, Oceana found evidence of nearly 1,800 animals from 40 different species swallowing or becoming entangled in plastic since 2009 in the U.S. Photo credit: \u00a9 Gumbo Limbo Nature Center Inc.<\/figcaption><\/figure><\/div>\n\n\n<p>These animals can also entangle themselves in floating pieces of plastics and drown. <a href=\"https:\/\/usa.oceana.org\/reports\/choked-strangled-drowned-plastics-crisis-unfolding-our-oceans\/\">In other cases<\/a>, they can end up with rings of plastic around their necks or bodies, which grotesquely maim them and cause immense suffering until they die of their suppurating wounds. &nbsp;<\/p>\n\n\n\n<p>Even worse, because they are more insidious, are <a href=\"https:\/\/iopscience.iop.org\/article\/10.1088\/1748-9326\/10\/12\/124006\">microplastics<\/a>. These are tiny, often barely visible bits of plastic \u2014 like the ones shed from clothing in washing machines \u2014 which can now be found in all the world\u2019s seas.<\/p>\n\n\n\n<p>To fully understand what microplastics do, we must appreciate another nasty property of long carbon chains: They make plastic lipophilic, which is a jargony way of saying plastics repel water (which is the reason why we make rain jackets with plastic fibers).<\/p>\n\n\n\n<p>Now, it so happens that most of the worst poisons that the chemical industry produces \u2014 DDT, PCB, dioxins, etc. \u2014 happen to be lipophilic as well.<\/p>\n\n\n\n<p>Thus, every bit of microplastic in the ocean acts as a <a href=\"https:\/\/oceanservice.noaa.gov\/hazards\/marinedebris\/plastics-in-the-ocean.html\">minuscule sponge<\/a> for the various poisons that the chemical and energy industries have disposed of via waterways or the air, and which have ended up in the sea, where they now accumulate.<\/p>\n\n\n\n<p>So these chemicals stick to microfibers, turning them into tiny poison pills that end up being consumed by small, insect-like animals called zooplankton, which store lipophilic substances in the fat of their little bodies<a href=\"#_edn5\" id=\"_ednref5\">[v]<\/a>.&nbsp;This is called bioaccumulation. Zooplankton are then consumed by small fish such as sardines and anchovies, which are then eaten by tuna and then \u2026 <em>bon app\u00e9tit<\/em>!<\/p>\n\n\n\n<p>This is why we must de-plastify the world, starting with the absurd waste that single-use plastic containers and utensils represent.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><a href=\"#_ednref1\" id=\"_edn1\">[i]<\/a> https:\/\/www.sciencedirect.com\/science\/article\/pii\/S187802961630158X<\/p>\n\n\n\n<p><a href=\"#_ednref2\" id=\"_edn2\">[ii]<\/a> https:\/\/ipen.org\/documents\/plastics-toxic-additives-and-circular-economy<\/p>\n\n\n\n<p><a href=\"#_ednref3\" id=\"_edn3\">[iii]<\/a>https:\/\/www.science.org\/doi\/10.1126\/sciadv.1700782#:~:text=We%20estimate%20that%208300%20million,landfills%20or%20the%20natural%20environment<\/p>\n\n\n\n<p><a href=\"#_ednref4\" id=\"_edn4\">[iv]<\/a> https:\/\/usa.oceana.org\/reports\/choked-strangled-drowned-plastics-crisis-unfolding-our-oceans\/<\/p>\n\n\n\n<p><a href=\"#_ednref5\" id=\"_edn5\">[v]<\/a> https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0025326X12005942<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dr. Daniel Pauly is the founder and principal investigator of the Sea Around Us project at the University of British Columbia&#8217;s Institute for the Oceans and Fisheries, as well as an Oceana Board Member. Until the 1950s, the animals on Earth, including marine animals, primarily only had to deal with debris and trash in the &#8230; <a title=\"Ask Dr. Pauly: Why are plastics in the ocean so harmful?\" class=\"read-more\" href=\"https:\/\/oceana.org\/blog\/ask-dr-pauly-why-are-plastics-in-the-ocean-so-harmful\/\" aria-label=\"Read more about Ask Dr. Pauly: Why are plastics in the ocean so harmful?\">Read more<\/a><\/p>\n","protected":false},"author":269,"featured_media":23496,"comment_status":"closed","ping_status":"closed","sticky":true,"template":"","format":"standard","meta":{"footnotes":""},"location":[],"expedition":[],"campaign":[197,189],"ppma_author":[124],"class_list":["post-23508","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","campaign-marine-wildlife","campaign-plastics","infinite-scroll-item"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.1 (Yoast SEO v26.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ask Dr. Pauly: Why are plastics in the ocean so harmful? | Oceana<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/oceana.org\/blog\/ask-dr-pauly-why-are-plastics-in-the-ocean-so-harmful\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ask Dr. Pauly: Why are plastics in the ocean so harmful?\" \/>\n<meta property=\"og:description\" content=\"Dr. Daniel Pauly is the founder and principal investigator of the Sea Around Us project at the University of British Columbia&#8217;s Institute for the Oceans and Fisheries, as well as an Oceana Board Member. Until the 1950s, the animals on Earth, including marine animals, primarily only had to deal with debris and trash in the ... 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It is far more likely plastic waste will end up in a landfill or in the environment, including ocean ecosystems. 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