Your empty wine bottle could help rebuild coastlines | Franziska Trautmann

What if you could take something as tiny as a grain of sand — and as common as a glass bottle — and use it to tackle the climate crisis? Waste alchemist Franziska Trautmann shares how the spark of an idea turned into a large-scale operation helping restore the eroded shores of Louisiana and beyond. (Created in collaboration with Ignite Talks)

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