water scarcity

The World Meteorological Organization (WMO) reported on global water scarcity, with water levels of major tributaries to the Amazon - the largest river on Earth - at record lows.

Vietnam is one of the countries lacking water due to lack of reasonable measures to regulate the flow and waste water exploitation and use.

Disaster comes mainly from nature, such as meteorites or super volcanoes, or because the earth gets warmer or the environment is destroyed. But there are also causes from humans,

The device is the work of MIT researchers and professor Omar Yaghi's laboratory at the University of California, Berkeley (UCB).