East Africa: Rain 'linked to Northern climate'

Sediment cores drilled from one of East Africa's Great Lakes show that rainfall in the region is highly sensitive to climate changes in the Northern Hemisphere. Analysis of the cores — collected from the bottom of Lake Tanganyika in East Africa's Rift Valley and dating back 60,000 years — suggest that rainfall is sensitive to changes in winter winds in northern Asia and sea surface temperatures in the Indian Ocean.