Nature and EnvironmentSerbiaSerbia seeks to beat air pollution with 'liquid trees'02:22This browser does not support the video element.Nature and EnvironmentSerbiaLuka Stokic06/25/2024June 25, 2024Serbian scientists are helping to purify the air in cities with what they call liquid trees. The tanks full of microalgae bind carbon dioxide and produce oxygen through photosynthesis.Copy linkAdvertisement
