Summary:
- The article discusses new research that has uncovered a surprising source of winter ozone pollution - the freeze-thaw cycles of plants.
- The study found that as plants freeze and thaw during the winter, they release volatile organic compounds (VOCs) that can contribute to the formation of ozone in the atmosphere.
- This finding challenges the traditional understanding of ozone pollution, which has typically focused on emissions from vehicles and industry, and highlights the importance of considering the role of natural sources in air quality management.