Overview uses satellite and aerial imagery to demonstrate how human activity and natural forces shape our Earth. This perspective provides a powerful look at the planet where we live and the civilization we are creating. Through our Imagery, Shop, and Collaborations we aim to inspire the Overview Effect.
Sand mixes with snow in the Oleshky Sands, a semi-arid desert of southern Ukraine. This 62-square-mile (161-square-kilometer) region contains sand dunes as tall as 16 feet (5 meters) and is the second-largest desert in Europe. The origin of Oleshky Sands is uncertain — one theory says it is a dried riverbed of the Dnieper River; another points to over-grazing by millions of sheep pastured in the area during the 18th and 19th centuries.