New research has revealed the presence of approximately 27 million tons of nanoplastics in the North Atlantic Ocean, highlighting a previously underreported form of plastic pollution. Nanoplastics, defined as plastic particles smaller than one micron—smaller than a human hair—are capable of passing through cell walls and entering the marine food web. These particles represent a larger contamination by number and mass than larger plastic debris. The study also identified that common household appliances release up to 920,000 microplastic particles per cycle, contributing to the proliferation of these tiny plastics. The findings emphasize the urgent need to limit plastic pollution and accelerate international efforts such as the Plastics Treaty to prevent further breakdown of plastics into nanoplastics in marine environments.