NIAGA, Senegal ¨C On the shore of Senegal¡¯s Pink Lake, salt farmer Pape Sira Ba has raked in what he fears may be his last harvest.
Extreme floods contaminated the 3-square-km lake five months ago, turning its famous waters green and threatening thousands of people who depend on it for their livelihoods.
Officially known as Lake Retba, the lake¡¯s high salinity and rare microbiome long-fostered an algae that turned it a pinkish color, making it one of the West African country¡¯s most visited attractions and under consideration as a UNESCO World Heritage site.

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