Map O.1 Use of aggregated cellphone records to track mobility week by week during COVID-19 lockdowns in The Gambia, March–May, 2020 http://bit.do/WDR2021-Map-O_1 ...

Of course, most of those changes happened a long time ago—and it's not often that a new country is added to global maps.

This text and the language in the corresponding map was updated in consultation with a world gender expert* in October, 2023. NOTE to teachers and students: Some school or corporate domains block ...

Sadly, 60% of the world's population has already lost access to the night sky thanks to light pollution. Across Europe and the U.S., that number climbs to nearer 80%. A team of researchers wants ...