Microplastics may influence cloud formation and weather patterns, researchers find

New research indicates that microplastics in the atmosphere may influence cloud formation and weather patterns. These tiny plastic particles can cause ice crystals to form at warmer temperatures than previously thought, potentially altering precipitation processes. Microplastics, which are less than 5 millimeters wide, can be found in various environments, including remote areas like Antarctica and Mount Everest. Their ability to nucleate ice could change the balance of liquid water and ice in clouds, affecting how clouds reflect sunlight and influence Earth's climate. Further studies are needed to determine the concentration of microplastics at cloud-forming altitudes and how they compare to other ice-nucleating particles. This information will help scientists understand the overall impact of microplastics on weather and climate.