How Africa Is Fighting the Sahara Desert
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Inside Africa's Food Forest Mega-Project
18:33
How Africa’s Biggest Economy Lost 50% of Its GDP
18:01
Who Killed the Colorado River?
11:15
A genius way to protect the ocean
12:19
How India is Turning its Desert into a Farmland Oasis
11:12
How Humanity Saved the Ozone Layer
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Why Europe and America’s dying forests could be good news
29:30