Water Scarcity in the 21st Century

Water scarcity is likely to become more and more of a problem throughout the 21st century due to population growth and climate change. Global water use is already growing at twice the rate of population growth, and climate change is expected to raise the stakes, accounting for 20 percent of the global increase in water scarcity. According to the BBC, a third of the world's population lives in water-stressed countries now, but by 2025, this is expected to rise to two-thirds. Water scarcity can be classified into two categories: physically scarce or economically scarce.