We’ve shared a number of stories about desertification before:
And we shared the story of the Savory institute as well
They claim to be able regenerate dried out grasslands and savannas by just changing the way we range livestock.
I recently found a chapter of the book ´An optimist´s tour of the future` dedicated to these methods in Australia. The chapter tells a number of stories about how local farmers are benefiting from these methods and putting carbon back in the soil. You can download the chapter for free.