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Sep 18, 2024 · Marine pollution is a combination of chemicals and trash, most of which comes from land sources and is washed or blown into the ocean. This pollution results in damage to the environment, to the health of all organisms, and to economic structures worldwide.
Apr 1, 2020 · Marine debris. Marine debris is a persistent pollution problem that reaches throughout the entire ocean and Great Lakes. Our ocean and waterways are polluted with a wide variety of marine debris, ranging from tiny microplastics, smaller than 5 mm, to derelict fishing gear and abandoned vessels.
- Ocean acidification. When we burn fossil fuels, we don’t pollute just the air but the oceans too. Indeed, today’s seas absorb as much as a quarter of all man-made carbon emissions, which changes the pH of surface waters and leads to acidification (pH is a measure of how acidic or basic water is).
- Trash in the ocean. The majority of the garbage that enters the ocean each year is plastic—and here to stay. That’s because unlike other trash, the single-use plastic bags, water bottles, drinking straws, and yogurt containers, totalling some eight million metric tons of the plastic waste we toss (instead of recycling), won’t biodegrade.
- Ocean noise. The ocean is far from being a “silent world.” Sound waves travel farther and faster in the sea’s dark depths than they do in the air, and many marine mammals like whales and dolphins, in addition to fish and other sea creatures, rely on communication by sound to find food, mate, and navigate.
- Offshore drilling. In addition to noise pollution, the oil and gas industry’s routine operations emit toxic by-products, release high levels of greenhouse gases, and lead to thousands of spills in U.S. waters annually.
Most ocean pollution begins on land. When large tracts of land are plowed, the exposed soil can erode during rainstorms. Much of this runoff flows to the sea, carrying with it agricultural fertilizers and pesticides. Eighty percent of pollution to the marine environment comes from the land. One of the biggest sources is called nonpoint source ...
Marine plastic pollution is a type of marine pollution by plastics, ranging in size from large original material such as bottles and bags, down to microplastics formed from the fragmentation of plastic material. Marine debris is mainly discarded human rubbish which floats on, or is suspended in the ocean.
Aug 13, 2024 · Marine pollution, as distinct from overall water pollution, focuses on human-created products that enter the ocean. Before 1972, humans around the word spewed trash, sewage sludge, and chemical ...
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Jun 27, 2022 · Combatting marine pollution is a global challenge, that needs a global approach if it’s to be mitigated, experts remarked. “Sea-based pollution, including discharges and spills from vessels and the presence of abandoned, lost, or otherwise discarded fishing gear, continues to be of concern, with plastics and microplastics from numerous ...
