No one's sure how the South American water hyacinth invaded Africa's Lake Victoria but there's little doubt as to the damages it has caused. In 1989, the weed was spotted in the lake and seven ...

To try to understand how harmful algal blooms might evolve in Lake Erie in a warming climate, University of Michigan scientists helped conduct a survey of cyanobacteria in a gulf of Kenya's Lake ...

From a craggy outcrop overlooking this chaotic sprawl, Elias Kabashi, a fisherman and father of four, gazes out at Lake Victoria. The lake sparkles faintly in the distance, reflecting the rising sun.