Concrete is one of the most destructive materials in the world. Now researchers in Germany and Nigeria are working together to make a version out of cassava peels. It's cheap, strong and eco-friendly.
On this week's Eco Africa, we see how architects and engineers in Senegal are making buildings with bricks made of soil not concrete, and follow rangers in Uganda's Murchison Falls National Park.
On this week's Eco Africa, we check out the humpback whale’s resurgence off South Africa's coast, a company turning discarded fish skin into leather, and an innovator who built a school out of trash.
Sand on beach may look all the same, but it's not. Researchers have found that the material has a "sound," one that can be linked to its home. Find the source, and we can learn more about how it moves around the world.
Sand as a building material is essential especially for highly industrialized societies. It's widely used around the world, and there seems to be no shortage. However, demand can easily surpass supply in some regions.
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