Physical evidence found in caves in Laos helps tell a story about a connection between the end of the Green Sahara, when once heavily vegetated Northern Africa became a hyper-arid landscape, and a previously unknown megadrought that crippled Southeast Asia 4,000 to 5,000 years ago.
Rock shelters in Laos near the Tham Doun Mai cave where researchers found
evidence of the 1,000-year megadrought [Credit: Joyce White]In a paper published…
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