A 2025 study published in the Proceedings of the National Academy of Sciences found that ingesting less than three sugar-cubes' worth of macroplastic can be lethal to an Atlantic puffin, about two baseballs' worth of macroplastic can be lethal to a sea turtle, and about a soccer ball's worth of macroplastic can be lethal to a seal or dolphin.
November 20, 2025
high
statistical
Quantitative lethal-threshold equivalents for macroplastic ingestion estimated by a 2025 PNAS study.
Low wind conditions slow the atmospheric dispersion of released gases, which can impede efforts to dissipate hazardous airborne chemicals.
November 13, 2025
high
process
Describes a general physical process affecting airborne chemical dispersion.