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Scientists sailing across the North Atlantic found that a thin, oily film on the ocean's surface, which helps create water vapor and clouds, is loaded with pollution like microplastics, "forever chemicals," and soot, while the tiny animals (zooplankton) that normally keep this layer healthy were almost completely missing from most of their sampling sites. Since the ocean plays a huge role in regulating clouds and climate, and since this surface layer is also where much of the microplastic pollution in the sea concentrates, the findings suggest that fighting ocean pollution may be just as important for climate, and for the health of marine food ch
Abstract. Climate policy treats carbon dioxide as the single lever on the climate. We suggest a second one has been overlooked: the marine biodiversity that builds and maintains the ocean surface microlayer (SML) and that pollution is now degrading. Water vapour, not CO₂, is the largest single contributor to the natural greenhouse effect and the strongest feedback on warming. The ocean supplies most of that vapour across the 71% of the planet it covers, and the thin biogenic lipid-and-surfactant film phytoplankton spread over the sea surface helps govern how readily it evaporates and forms aerosol. That same film gathers lipophilic "forever" chemicals, together with the microplastic and black-carbon soot they cling to, to levels far above the water beneath, where they turn toxic to the plankton that hold the ecosystem together. An automated image pipeline sized and classified 51,547 particles larger than 20 μm in 352 georeferenced surface samples from eight sailing vessels crossing the trade-wind North Atlantic. Zooplankton were absent from 93.8% of stations. Black carbon appeared at 89.8%, microplastic particles at 69.9%, microfibres at 22.4% and phytoplankton at 81.8%; 99.2% of everything counted measured below 200 μm. A separate 110-image, GPS-tagged crossing returned zero zooplankton at every point on the track, and a plankton net towed at the surface by day and by night confirmed the scarcity directly, returning roughly 0.2 to 0.5 animals per cubic metre – far below any productive ocean. In short, this surface layer is stripped of animal plankton and steeped in combustion and plastic residue. We trace what that may mean for the microlayer, for water-vapour feedback and cloud formation, and for ocean pH, and argue that cutting pollution has to sit beside cutting carbon.
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Reply on AC5
AI summary Read the abstract
Scientists sampling the Atlantic Ocean found that its surface, a thin skin of water that helps produce clouds and regulate climate, is nearly empty of tiny animals (zooplankton) but loaded with soot, microplastics, and "forever chemicals" at almost every site tested. This matters because that same polluted surface layer plays a big role in water vapor and cloud formation, meaning ocean pollution may be quietly messing with the climate in ways separate from CO2, and it's a reminder that the same toxic soup coating the sea surface is also the stuff washing into the fish and water we consume.
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Scientists sailing across the Atlantic Ocean found that its surface, a thin film that helps control evaporation and cloud formation, is nearly empty of tiny animal life (zooplankton) but loaded with soot, microplastics, and "forever chemicals" at almost every stop they tested. This matters because that surface layer plays a big role in regulating water vapor, one of the most powerful natural greenhouse gases, meaning ocean pollution might be quietly disrupting climate systems in ways that go beyond just CO₂, and it's a reminder that the same plastics and toxic chemicals fouling the ocean sur
Reply on RC6
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Scientists sampling the Atlantic Ocean found that its surface, a thin film that helps produce water vapor and clouds, is packed with microplastics, soot, and "forever chemicals," while the tiny plankton that normally live there were almost completely missing. This matters because that surface layer helps regulate Earth's climate, and if pollution is wiping out the plankton that maintain it, our climate problem may be bigger than just carbon dioxide, it's also about ocean pollution reaching this critical layer, the same pollution that ultimately works its way into seafood and, potentially, our bodies.
Reply on RC3
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Scientists sampling the Atlantic Ocean found that its surface layer, a thin film that helps regulate water evaporation and cloud formation, is nearly empty of zooplankton (tiny animals that anchor the marine food web) but loaded with microplastics, soot, and "forever chemicals." This matters because that same surface film plays a role in climate regulation, and its degradation from pollution could be an overlooked factor in climate change, meaning cutting plastic and chemical pollution may be just as important as cutting carbon emissions. It's also a stark reminder that the same pollutants harming ocean life are accumulating in
Reply on RC7
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Scientists sailed across a stretch of the North Atlantic Ocean and found that its surface, a thin film that helps regulate water vapor, clouds, and ocean chemistry, is contaminated with microplastics, soot, and "forever chemicals," while the tiny animals (zooplankton) that normally live there were almost completely missing. This matters because that surface layer plays a big role in climate regulation, and if pollution is wiping out the organisms that maintain it, we may need to fight pollution alongside cutting carbon emissions to protect the climate, and by extension, human health, since a stable climate and clean oceans affect
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