The United Arab Emirates (UAE) and Saudi Arabia are two of several countries in the Persian Gulf beginning to invest in the water sector. In anticipation of growing demand for water due to population growth, UAE plans to spend $7 billion over the next seven years, while Saudi Arabia plans to spend $28 billion over the next decade, reports Gulf News. The article does not provide a breakdown of sector spending, but notes that $6 billion of Saudi Arabia’s investment will go toward desalination plants.