Study Says Chukotka and Alaska Were Connected Only 35,700 Years Ago

The Last Glacial Maximum is the time of maximum cooling during the last glacial epoch between 26,500 and 19,000 years ago. The level of the World Ocean at that time was 120-135 meters lower than it is now because the water accumulated as ice in the 3km to 4km thick ice sheets withdrawn from the hydrosphere.