Earlier this month the UN warned the world may be close to its first water war. "Water is linked to the crises of climate change, energy and food supplies and prices, and troubled financial markets," a report on the issue found. "Unless their links with water are addressed and water crises around the world are resolved, these other crises may intensify and local water crises may worsen, converging into a global water crisis and leading to political insecurity and conflict at various levels."