No country in the Middle East is a stranger to water scarcity. But Egypt, the region’s largest, is rebranding itself as a leader of the Arab world’s fight against water stress. As home to the world’s longest and perhaps best-known river, Egypt finds itself in a unique position to spearhead efforts to mitigate the Middle East’s water crisis amid the international community’s faltering campaign against climate change. Yet the Nile’s own challenges with environmental issues place unprecedented pressure on Egypt to show results. “Even as Egypt positions itself as one of the international community…