Further, according to the 2030 Water Resources Group, it appears that most countries have more than enough water to meet the majority of their population’s needs without damaging the natural environment (2030 WRG, 2009). However, while these global measures are comforting, aggregate measures which compare total water use relative to the total amount of water available at a global, or even national scale, hide underlying challenges. Such measures are, therefore, of little use for management or policy decision making.