Plastic pollution is worsened by warming climate and must be stemmed. This is done by speeding up plastic breakdown into microplastics—microscopic fragments of plastic—spreading them considerable distances, and increasing exposure and impact within the environment.

The linked story mentions things like single-use plastics, but one of the biggest sources of microplastics is car tires.

>In recent times, tire wear particles have been found to account for about 45% of all microplastics in both terrestrial and aquatic systems.

[https://phys.org/news/2025-07-biggest-microplastic-pollution-sources-isnt.html](https://phys.org/news/2025-07-biggest-microplastic-pollution-sources-isnt.html)