Moss is often overlooked, dismissed as mere ground cover – or worse, perceived as a nuisance and removed. Yet it plays a surprisingly important role when it comes to urban cooling and CO2 sequestration. Studies show that moss can absorb up to four times more CO2 than trees – compact, efficient, and usable almost anywhere. Unlike conventional plants, moss doesn't need soil. It grows on roofs, walls, or pavements – ideal for urban spaces where room is at a premium. But moss can do even more: it st