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A Dangerous Taste for Plastic in the Ocean Depths
›If you watched Finding Nemo (who hasn’t?), you may remember Nemo’s home in the beautiful pink sea anemone with its tentacles waving around. These tentacles are able to sting and eat fish, crabs, and sometimes even birds. Lucky for Nemo, clownfish have a mucus coat that protects them from the sea anemone’s poisonous stings. And lucky for the sea anemone, clownfish protect them from being consumed by other fish and provide them nutrients through their food and fecal droppings. Nemo and his fellow clownfish, however, can’t shield these sedentary sea animals from nearly invisible plastic microfibers or plastic preproduction pellets, called nurdles. At Duke University I have been studying one specific species of sea anemone, Aiptasia pallida, which seems to find plastic particularly tasty. My work is part of a larger wave of scientific research around the world looking into how and why sea animals are eating microplastics and how it may impact their health.
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Largest Polar Expedition Ever Seeks to Explain Shrinking Arctic Sea Ice
›“If you’re a sea ice person, MOSAiC is the kind of experiment that you just live for,” said Don Perovich, a Dartmouth College researcher with the Multidisciplinary drifting Observatory for the Study of Arctic Climate. “It’s the kind of experiment you dream about. It’s an opportunity to spend a whole year on the ice, just watching how a floe evolves over time.” He spoke at a recent event sponsored by IARPC Collaborations, an Interagency Arctic Research Policy Committee (IARPC) member space where scientists and others involved in Arctic research share knowledge and resources. The researchers on the expedition, said Perovich, aimed to collect data that would shed light on the causes and consequences of the evolving and diminished Arctic sea ice cover. MOSAiC’s mission was to facilitate a breakthrough in understanding the Arctic climate system and improve the world’s climate and weather forecasting models.
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Sharon Guynup, Mongabay
Landed by the thousands: Overfished Congo waters put endangered sharks at risk
›October 27, 2020 // By Wilson Center StaffIn a video clip, seven fishermen climb into a wooden “Popo” boat that’s beached on the Republic of the Congo’s sandy shoreline. They start up the motor of the 40-foot, limo-length motorized canoe and head out into the Atlantic. The men aboard the weathered craft — its blue paint chipped and faded by years of salt and sun — could be out for a week.
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The Environmental Collateral Damage of the South China Sea Conflict
›Tensions in the South China Sea increased last April when a Chinese coast guard ship sank a Vietnamese fishing boat near the Paracel Islands—a fiercely disputed territory in the South China Sea. Disputes over island territories in the region have endured for decades, with China, Vietnam, the Philippines, Taiwan, Indonesia, Malaysia, and Brunei all making overlapping territorial claims. The region is rich in natural resources and biodiversity, holding vast fish stocks and an estimated 11 billion barrels of oil and 190 cubic feet of natural gas.
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How Plastic Pollution is Being Woven into Fast Fashion Culture
›The words “plastic pollution” evoke images of discarded plastic bottles and bags, derelict fishing gear, and crushed cigarette butts set on a beautiful beach or floating underwater. In this imagery, the ebb and flow of plastic pollution is visible to the naked eye. But the plastic we can see is only part of the problem. What we do not see so easily are the microscopic, hair-like plastic fibers that are coursing through the water and air, accumulating on beaches, in intertidal zones, and even in Arctic sea ice. These are synthetic microfibers: thin pieces of plastic, a sub-category of microplastics, that resemble a strand of hair.
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The World Is Your Oyster and Your Plastic Pollution Is Getting Into It
›Picture this: It’s a warm, spring day in May 2021. You are at a local seafood restaurant overlooking the Chesapeake Bay and your order of raw oysters arrives delicately placed on a layer of ice. Your waiter reviews the type of oysters you ordered. He says, “Running clockwise, you have Pemaquid, Blue Point, and PEI.” Before the waiter steps away, he asks, “Would you like extra microplastics added to your oysters?” Dumbfounded, you reply, “Extra?”
This Twilight Zone-like scenario is not totally fictional. Oysters are a keystone species in the environment, meaning they are the backbone of ecosystems. They are heroes in a small shell. In addition to where they sit on the food chain, oysters can filter up to 50 gallons of water per day, cleaning the surrounding water of chemicals and pollutants. However, this means they inevitably suck up more than they bargained for. Scientists have discovered that oysters contain microplastics, plastic pieces that measure less than 5 mm in size in one dimension (similar to the size of a sesame seed). Oysters suck in microplastics and, sometimes, they never pass them out.
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Delivering a Solution to the World’s Ocean Plastic Problem
›In 2017, the Green Volunteer League of Chongqing, an environmental NGO, filed a suit against China’s three biggest food delivery companies—Meituan, Baidu, and Ele.me—for damaging the environment by generating excessive waste. Specifically, these three e-commerce platforms provided consumers with single-use chopsticks that consumed 6,700 trees every day as well as massive amounts of plastic containers, bags, and utensils. Today, over 400 million Chinese are regular users of food delivery. Since summer 2019, daily app use for Meituan was over 30 million orders, generating 100 million plastic containers every day—enough to carpet 360 football fields.
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To Fight for a Living Planet, Restore its Biology
›We face the greatest environmental challenges ever relating to climate change, biodiversity, land use, and more. Humans are driving 1 million species to extinction, according to a report by the UN-backed Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services. Some $44 trillion of annual global economic product that depend on nature are in jeopardy. Fires have ravaged large swathes of the Amazon—Brazil and Bolivia in particular—and Australia.
Showing posts from category oceans.