The aim of this report is to recommend the comparisons of two water provision methods for an arid region, China. The water methods are compared based on the cost and environmental impact.Look no further than Beijing in China! This city of China has 20 million of people but possess only 1/10 of the world’s average water resources per capita. This city has seen draughts per year for the past decades and this is the reason its ground water level has dropped down at perilous rate. Beijing’s chronic water shortage is emblematic of the broader challenge facing by China on regular basis (PWC Report, 2013). China is one of the countries who are facing scarcity of water typicaly. The water scarcity can be handled by using some excellent and innovative technologies. China has 21% population of the world but it only has 6% of freshwater overall. It has been estimated that more than 400 cities of China have serious water problem (PWC Report, 2013).Chine is not the only conutry which is facing serious water scarcity but it is one of the 13 countries for example Inida, South Afica, Brazil etc; as recommended by USA are facing serious water problems across the world (Worldwatercouncil.org, 2013). Across the globle almost water scarcity impacts over 2.8 billion people at least one month of the year.This above water crisis map indicates that Asian and African countries are facing the water scarcity to the highest of its level. By 2020, it is expected that over 3 billion people will face the water crisis. This water crisis is also impacting badly over the environment, soil, agriculture and health of the people.This is a process in which some amount of salts and other minerals are removed from the saline water. In this process salt water is desalinated to produce fresh water which can be later on used for human consumption and irrigation.