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Plastic pollution is the accumulation of plastic objects and particles (e.g. plastic bottles, bags and microbeads) in the Earth's environment that adversely affects humans, wildlife and their habitat. [1] [2] Plastics that act as pollutants are categorized by size into micro-, meso-, or macro debris. [3]
Researchers took samples of human brains from dead people to look for microplastics. The brain samples had higher levels of plastic than kidney or liver samples. People who died in 2024 had more ...
While visible pollution caused by larger plastic items is well-documented, the hidden threat posed by nanoplastics remains under-explored. These particles originate from the degradation of larger plastics and are now found in various environmental matrices, including water, soil, and air.
Additionally, another issue caused by humans which impacts marine life is marine plastic pollution, which poses a threat to marine life. [6] According to the IPCC (2019), since 1950 "many marine species across various groups have undergone shifts in geographical range and seasonal activities in response to ocean warming, sea ice change and ...
The number of tiny bits of plastic found in human brains increased dramatically between 2016 and 2024, with the highest amounts found in the brains of people who had dementia.
Marine pollution caused by plastic substances is recognized as an issue of the highest magnitude, from a pollution perspective. [27] A majority of plastics used in people's day to day lives are never recycled. Single use plastics of this kind contribute significantly to the 8 million tons of plastic waste found in the ocean each year. [2]
Consumer reports also noted that other studies show they can also cause diabetes, cardiovascular disease, certain cancers, neurodevelopmental disorders, and infertility.
[131] [132] However, shipping remains a dominant source of plastic pollution, having contributed around 6.5 million tons of plastic in the early 1990s. [ 133 ] [ 134 ] Research has shown that approximately 10% of the plastic found on the beaches in Hawaii are nurdles. [ 135 ]