A notable environmental development has occurred in Senegal, where a body of water known as Pink Lake has regained its distinctive color. This lake, also referred to as Lake Retba, owes its hue to certain microorganisms. These microorganisms, including a type of algae called Dunaliella salina, are able to thrive in highly saline conditions.

The presence of these microorganisms is what gives Pink Lake its characteristic rosy appearance. Further information about this development and its potential impact can be found in the Waco Tribune-Herald, which reported on the recovery of Pink Lake's color and its effects on the local salt trade.