A 2017 astronaut photo shows the islands of Dek and Daga lurking in the murky, algae-infested waters of Ethiopia's Lake Tana.
Two years on from the first blue-green algae blooms, BBC News NI returns to Lough Neagh to meet the people who call the area ...
A harmful blue-green algae bloom spread across nearly all of Green Lake, raising concerns about water quality and the future ...