A washed out basin of gray land is surrounded by light beige yellow sand. The basin is about one third filled with green water labeled Sebka el Mehah.

Water for a Desert Lake in Algeria

Scientists are studying the rare filling of Sebkha el Melah for clues about past—and possibly future—greening of the Sahara Desert.

Credits: NASA Earth Observatory/ Michala Garrison
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Image CreditNASA Earth Observatory/ Michala Garrison
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