Green Science is the application of eco-friendly thinking to scientific disciplines. Learn about global warming, pollution and other impacts on nature and the planet, plus what we can do to combat them.

Why is the Sahel shifting?

For the people who eke out an existence in Africa's semiarid Sahel region south of the Sahara, a shift in climate is nothing short of disastrous. What makes the Sahel so unstable, and why is it shifting?

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