Proposals for Problem Solving
The original graph made on the basis of the data (*1) from UN
Hereafter, the world’s population will increase, especially in Africa. Water is a limited resource and the amount of the water we can use on the earth does not change. Moreover, the differential of the precipitation between regions having much rain and regions having little rain will increase because of climate change.
If we continue to live without any consideration to water, the water problems today will be more serious in the future.
*1:UN. (2017).World Population Prospects 2017, Retrieved December 23, 2018