Cause for concern: The massive algae bloom at Kranji Reservoir has turned the waters green. — The Straits Times/Asia News Network
Singapore: The diving pool at the Rio Olympics is not the only body of water that has caused alarm because of its unusual colour – an algae bloom has turned large swathes of Kranji Reservoir emerald green.
Environmentalist Ria Tan, who runs wildlife website WildSingapore, posted pictures of the bloom on her website on Wednesday.
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