Airborne microplastics aid in cloud formation
New research suggests that microplastics in the air could affect weather and climate by producing clouds in conditions where they would not form otherwise. Clouds form when water vapor sticks to tiny floating particles in the atmosphere. Water droplets with microplastic particles can produce ice crystals at temperatures 5 to 10 degrees Celsius warmer than droplets without microplastics. Precipitation typically starts as ice particles. More information about microplastic concentrations at the altitudes where clouds form is needed before scientists can make theories on how exactly microplastics affect weather and climate.