The pie chart illustrates the proportion of available water resources in Japan in 2000, 2010, and 2020, while the table depicts the percentage of annual water consumption in the country in those three years. All illustrations provide information about water in Japan. Overall, it is evident that the country’s resource division has experienced significant changes throughout the decades with a clear increase in annual consumption.
Regarding the percentage of water resources, in 2000, seawater was the most considerable one, accounting for 70% of the total, whereas segments representing groundwater and rivers/lakes stood at less than a tenth. Conversely, a decade later, rivers/lakes share declined to roughly double (3%), while groundwater’s share increased, reaching 7%. Glaciers at the time accounted for a quarter of the total. By 2020, seawater maintained its leading position, whereas glaciers experienced a slight decrease, amounting to 18%.
Turning to annual consumption, apparently, there was a progressive rise over the years. In 2000, the total output was recorded at 65 gallons. This figure has risen dramatically over 20 years, becoming roughly 40% higher than in the first examined year.
In conclusion, there is a consistent trend of growth in annual water resources usage in Japan, which parallels alterations in the availability of available water resources.