@sambentley: We can turn grey concrete walls into living green surfaces that help clean our air, using this simple technique! It’s been developed by Respyre, based in the Netherlands, and they’ve designed a way to grow moss directly onto buildings! Here’s how it works. First, they apply a special bioreceptive concrete layer to a wall. This concrete is designed to hold moisture and create perfect conditions for moss to grow. Then, a moss coating is added, containing selected moss species and nutrients. Over around 12 weeks, the moss establishes itself and spreads across the surface. The result is a self-sustaining green wall that survives on rainwater alone, with no permanent irrigation needed! One of the big questions I had about this was won’t it make the building super damp? Apparently not, the moss only grows on the top concrete layer and actually protects the structure underneath from weathering. Cities are dominated by concrete that traps heat and worsens air quality. But moss changes that. It filters dust and pollution, absorbs CO₂, releases oxygen, and helps cool buildings. With so many plain walls in cities, could moss be a solution to turn these spaces into living infrastructure that actually helps the environment! What do you think? Let me know your thoughts in the comments! #goodnews #moss #tiktokforgood

Sam Bentley

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Region: GB

Monday 11 May 2026 16:30:00 GMT