Río de Janeiro, Brazil—Nearly 1500 people used Rio’s Flamengo Beach as a canvas today, their bodies forming the lines of an enormous image promoting the importance of free-running rivers, clean energy sources like solar power and including indigenous knowledge as part of the solution to climate issues. Giant text below the image read, “Rios para a vida” (“Rivers for life”) signifying that rivers should be dedicated to supporting the life of the millions of humans who depend on them and that they should remain undammed.

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