Moss: The Tiny Plant That Cools Cities and Absorbs CO₂ Moss may look small and simple, but it plays a surprisingly powerful ecological role. Unlike most plants, moss doesn’t need soil to grow—it can thrive on concrete, rooftops, rocks, and walls. Through evaporation, it helps cool surrounding air, making it valuable in urban heat zones. Per square meter, moss can absorb significant amounts of carbon dioxide and trap airborne pollutants, contributing quietly to climate resilience. Important Detai