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 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.
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 see how to make concrete from cassava peels in Nigeria and learn about the Namibian government's integrated management approach for conservation, poverty reduction and job creation.
Global warming has changed city life in Phoenix: When it gets too hot, construction crews start work at 4 a.m. and the zoo opens at dawn. But for some people, the heat is more than an inconvenience. It can turn deadly.
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