(VLR) If you are holding in your hand a glass of fresh water, appreciate it for there are currently hundred millions of people in the world, especially in poor underdeveloped country, having no chance to approach sources of clean fresh water. Climate change is getting fiercer, causing negative impacts on water sources. It is predicted that to 2050, there will be over 4.5bn people facing the lack of fresh water if nations have no new targets to improve water sources in accordance to features of sustainable developments.