A Great 'Green Wall' in Sahara to stop ever-expanding Sahara desert

Jan 06, 2022, 10:40 AM(IST) WION Video Team

The deserts never sit still, give them half a chance, and the desert suns will slowly expand their frontiers. 15 years ago, 20 African nations in the Sahel region joined hands to halt the expanding Sahara desert, but how far have they succeeded?

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