“Geologists led by Brown University say Lake Tanganyika, the second oldest and the second-deepest lake in the world, has experienced unprecedented warming during the last century, and its surface waters are the warmest on record. The finding is important because the warm surface waters likely will affect fish stocks upon which millions of people in the region depend.
The results of the study were published in Nature Geoscience.
The team took core samples from the lakebed that laid out a 1,500-year history of the lake’s surface temperature. The data showed the lake’s surface temperature, 26 degrees Celsius (78.8°F), last measured in 2003, is the warmest the lake has been for a millennium and a half.”