Geologists led by Brown University have documented that Lake Tanganyika in east Africa has experienced unprecedented warming in the last century. Using core samples obtained from the lakebed, the team determined the lake is currently the warmest it has been in the last 1,500 years. The warming likely is affecting the valuable fish stocks upon which millions of people depend. Results appear in Nature Geoscience. Lake Tanganyika, the second oldest and the second-deepest lake...







