Before: After: Land degradation is a serious problem in semi-arid rangeland in Africa, threatening wildlife habitats, grazing lands ... read more
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Before: After: All photos are copyrighted, for permission to use them for educational purposes only, please email info@... read more
Before: After: All photos are copyrighted, for permission to use them for educational purposes only, please email info@se... read more
Before: After: All photos are copyrighted, for permission to use them for educational purposes only, please email i... read more