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Edition #183 · Wednesday, October 21, 2026 · 3114 positive stories
Tech for Good

A Dutch startup is making concrete that grows its own moss

Optimist Daily 2026-10-20
A Dutch startup is making concrete that grows its own moss

A Dutch startup called Respyre has created a special type of concrete that allows moss to grow on it without needing water or soil. This innovative material is made by the company in collaboration with researchers from Delft University of Technology. The moss grows naturally on the surface, drawing moisture from rain and air.

Why it's good news: This new development could potentially reduce maintenance needs for buildings and create more sustainable urban environments.

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The tech section covers stories about technology making life better, not just more profitable. Open-source tools reaching new audiences, accessibility breakthroughs, AI applications in healthcare and education, infrastructure improvements that quietly make cities work better. Product launches and funding rounds are excluded unless they deliver tangible public benefit.

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