The reason why more than 2 billion people are about to have no clean water to use

After examining more than 421 river basins around the world, the research team focused on 97 areas that provide clean water to more than 2 billion people worldwide.

Snow will not fall will cause the Earth to lack clean water to use

In a recent scientific report from Columbia University's Earth Research Institute, more than 2 billion people around the world will fall into a situation where there is no clean water for future use because of a reason for hearing it. incredible: no snow.

Indeed, experts at the Earth Research Institute measured the snow layer thickness in the Sierra Nevada range and found that they had reached the lowest level in the last 500 years. Normally, the volume of water stored in the snow in the Sierra Nevada range could provide a third of California's total water supply if it melted in the spring.

The above measurement results have given the experts of clean water a warning that California will lose at least 20% of this special natural water.

After examining more than 421 river basins around the world, the research team focused on 97 areas that provide clean water to more than 2 billion people worldwide. The river basin is an area where all the surface water, rain water, snow and ice converge and runoff flows in the same stream. Include main stream and all tributaries, tributaries. After focusing on the analysis, they determined that with less and less snow falling due to hot Earth phenomenon, the risk of 97 points may disappear in the future. The reason is that the ice and snow layers will gradually wear out until they are exhausted without replenishment. That is, it is possible that about 2 billion people without clean water to use.

Dr Justin Mankin, head of the research team, said: " Snow is a very special source of clean water thanks to its storage state . With snow ice being eroded with fast speed and snow. If there is a drop in the number of days, there is a risk that there will be a shortage of clean water for use in some places . " In addition, Mr. Mankin added that although 97 test points were added with annual water storage by rainfall, up to 32 of them depended entirely on water from melted snow. Even the number of people dependent on this water source can reach 1.45 billion.

Scientists also point out areas that are likely to fall into a shortage of clean water without snow, such as the West of the United States, Southern Europe, such as Portugal and Italy, one of Asia, and most importantly Middle East region. With the winter of 2014 ranked No. 6 on the list of "hottest" winter colors in the United States, perhaps the story of "not falling snow without water" will not only be a fun but will become an attack. Real human nightmares if we don't act immediately.