A photo essay from Tommy Trenchard explores efforts to protect the fragile ecosystems of oases in Chad
Več na: https://www.newscientist.com/article/mg27035990-100-striking-photos-show-how-sands-are-encroaching-on-oases-in-the-sahara/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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