The Gulf Region is one of the most water-scarce areas in the world. Over several decennia, by far the largest proportion of water-for-agriculture used in the Gulf countries came from non-renewable fossil water aquifers with no or low replenishment rates. Growing concern about the ecological implications of the depletion of these aquifers has prompted the governments of Gulf countries to take adequate action over the past five to 10 years. Water-saving techniques have been introduced, among which are modern greenhouse complexes, and government support is given through development banks and investment funds.