This Arabian desert was once a lush paradise. Why did ancient humans avoid it?

Expedition revealed that water wasn’t enough for human settlement — plus, proposals to block sunlight get serious. 00:49 A failed desert expedition to find human tools reveals what humans needed to thrive Research Article: Dellmour et al. 12:33 Research Highlights Nature: Sleep declines in rural communities after electricity arrives Nature: AI doctors’ orders come with a sky-high bill 15:14 Could satellites help cool the Earth? Nature: Could a giant sunshade in space 'solve global warming'? Scientists are taking the idea seriously Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday. Hosted on Acast. See acast.com/privacy for more information.