Water levels in Egypt’s freshwater “Pharaonic Sea” have been steadily falling over the past several decades, worrying fishermen who rely on the sea for their work, says Phys.Org. “The thin 10,000-square kilometer stretch of water just north of the capital was once part of the Nile River, but shriveling shorelines have left its separated from the country’s main water source for nearly 50 years.” The dipping water levels are already alarming, and a certain upstream dam currently being constructed would exacerbate the situation, the website notes.