In the Amazon rainforest, you need sun to make ice. At least when making it with Gelo Solar, or "Solar Ice," a project by Brazil's Mamiraua Institute for Sustainable Development and São Paulo University. In this poor energy region, the solar-powered machine produces nearly 200 pounds of ice per day and helps indigenous residents preserve their fish and fruits without disturbing their way of life. The Mamiraua Institute is also using solar energy to light up the community's homes and provide running water.
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