https://www.youtube.com/watch?v=MtvdvXGrNqE&list=UU5KtA9cxWVZFFXg4VjY8WMg&index=2

This speech talks about how important the groundwater is to the Arabians . And the origin of why UAE government support the build of Masdar City. It's a long long story not only about usage of water , but also sustainable development  and global warming.