Mega-Chad: The Massive Ancient Lake That Once Filled the Sahara
Lake Mega-Chad once spanned roughly 361,000 square kilometres across the southern Sahara, making it larger than all five North American Great Lakes combined, according to a geological study published in the Proceedings of the National Academy of Sciences. Researchers Simon Armitage, Charlie Bristow, and Nick Drake reconstructed the ancient water body using optically stimulated luminescence … Read more