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Thursday, June 29, 2023

Another Code Red day in Baltimore

 
Cheryl and I on the I-83 about 6:15 pm, northbound toward Towson from the kids' house near Camden Yards. The air today was simply wretched. Code Red Baltimore.
 
 
IN CASE YOU LACK ENOUGH OF EXIGENT CONCERN
 
…Hyatt’s invention [celluloid], often described as the world’s first commercially produced plastic, was followed a few decades later by Bakelite. Bakelite was followed by polyvinyl chloride, which was, in turn, followed by polyethylene, low-density polyethylene, polyester, polypropylene, Styrofoam, Plexiglas, Mylar, Teflon, polyethylene terephthalate (familiarly known as pet)—the list goes on and on. And on. Annual global production of plastic currently runs to more than eight hundred billion pounds. What was a problem of scarcity is now a problem of superabundance.

In the form of empty water bottles, used shopping bags, and tattered snack packages, plastic waste turns up pretty much everywhere today. It has been found at the bottom of the Mariana Trench, thirty-six thousand feet below sea level. It litters the beaches of Svalbard and the shores of the Cocos (Keeling) Islands, in the Indian Ocean, most of which are uninhabited. The Great Pacific Garbage Patch, a collection of floating debris that stretches across six hundred thousand square miles between California and Hawaii, is thought to contain some 1.8 trillion plastic shards. Among the many creatures being done in by all this junk are corals, tortoises, and elephants—in particular, the elephants of Sri Lanka. In recent years, twenty of them have died after ingesting plastic at a landfill near the village of Pallakkadu.

How worried should we be about what’s become known as “the plastic pollution crisis”? And what can be done about it? These questions lie at the heart of several recent books that take up what one author calls “the plastic trap.”

“Without plastic we’d have no modern medicine or gadgets or wire insulation to keep our homes from burning down,” that author, Matt Simon, writes in “A Poison Like No Other: How Microplastics Corrupted Our Planet and Our Bodies.” “But with plastic we’ve contaminated every corner of Earth.”

Simon, a science journalist at Wired, is especially concerned about plastic’s tendency to devolve into microplastics. (Microplastics are usually defined as bits smaller than five millimetres across.) This process is taking place all the time, in many different ways. Plastic bags drift into the ocean, where, after being tossed around by the waves and bombarded with UV radiation, they fall apart. Tires today contain a wide variety of plastics; as they roll along, they abrade, sending clouds of particles spinning into the air. Clothes made with plastics, which now comprise most items for sale, are constantly shedding fibres, much the way dogs shed hairs. A study published a few years ago in the journal Nature Food found that preparing infant formula in a plastic bottle is a good way to degrade the bottle, so what babies end up drinking is a sort of plastic soup. In fact, it is now clear that children are feeding on microplastics even before they can eat. In 2021, researchers from Italy announced that they had found microplastics in human placentas. A few months later, researchers from Germany and Austria announced that they’d found microplastics in meconium—the technical term for an infant’s first poop…

…Plastics are made from by-products of oil and gas refining; many of the chemicals involved, such as benzene and vinyl chloride, are carcinogens. In addition to their main ingredients, plastics may contain any number of additives. Many of these—for example, polyfluoroalkyl substances, or PFASs, which confer water resistance—are also suspected carcinogens. Many of the others have never been adequately tested.

As plastics fall apart, the chemicals that went into their manufacture can leak out. These can then combine to form new compounds, which may prove less dangerous than the originals—or more so. A couple of years ago, a team of American scientists subjected disposable shopping bags to several days of simulated sunlight, in order to mimic the conditions that they’d encounter flying or floating loose. The researchers found that a single bag from CVS leached more than thirteen thousand compounds; a bag from Walmart leached more than fifteen thousand. “It is becoming increasingly clear that plastics are not inert in the environment,” the team wrote. Steve Allen, a researcher at Canada’s Ocean Frontier Institute who specializes in microplastics, tells Simon, “If you’ve got an IQ above room temperature, you have to understand that this is not a good material to have in the environment.”…

…Precisely because plastic is now ubiquitous, it’s difficult to imagine how to replace all of it, or even much of it. Even in cases where substitutes are available, it’s not always clear that they’re preferable. Franklin-Wallis cites a 2018 study by the Danish Environmental Protection Agency which analyzed how different kinds of shopping bags compare in terms of life-cycle impacts. The study found that, to have a lower environmental impact than a plastic bag, a paper bag would have to be used forty-three times and a cotton tote would have to be used an astonishing seventy-one hundred times. “How many of those bags will last that long?” Franklin-Wallis asks. Walker-Franklin and Jambeck also note that exchanging plastic for other materials may involve “tradeoffs,” including “energy and water use and carbon emissions.” When Schaub’s supermarket stopped handing out plastic shopping bags, it may have reduced one problem only to exacerbate others—deforestation, say, or pesticide use.

“In the grand scheme of human existence, it wasn’t that long ago that we got along just fine without plastic,” Simon points out. This is true. It also wasn’t all that long ago that we got along just fine without Coca-Cola or packaged guacamole or six-ounce bottles of water or takeout everything. To make a significant dent in plastic waste—and certainly to “end plastic pollution”—will probably require not just substitution but elimination. If much of contemporary life is wrapped up in plastic, and the result of this is that we are poisoning our kids, ourselves, and our ecosystems, then contemporary life may need to be rethought. The question is what matters to us, and whether we’re willing to ask ourselves that question.
Excerpted from her long-read article.
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