Other one billion lack access to drinking water and around 840 billion lack sanitation. Connect with other leaders such as U.S. Mint here. The SIWI estimated that in fifteen years, 1.8 billion people will be living in countries or regions where there will be an absolute shortage of water. FAO studies, meanwhile, show that water consumption has multiplied six times over the last century, twice the population increases. Other Center for Research in the Epidemiology Disasters, Belgium, show that during the period from 1996-2005 about 80% of all natural disasters were of meteorological or hydrological origin. And all this without taking into account that a temperature rise of 3 to 4 degrees, as predicted by scientists to the second half of the century, changed the hydrological cycle and worsen the local effects of floods and droughts. BBC.mundo.com., Gives us that, many experts believe that access to water is one of the greatest challenges facing the world today. "It's an extremely serious matter," he told the BBC Jon Lane, executive director of the Collaborative Council for Water Supply and Sanitation Collaborative Council (WSSCC), a UN agency in charge of bringing water and sanitation to poor communities. In recent years, headlines have focused on climate change, financial crisis, food crisis "And those who work with water, we believe this action is on the basis of all these problems you are experiencing the world, particular regard to climate change, "said the expert, one of the attendees at the conference. According to the official, the impact that climate change is having on the human being is related to water.