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Main sectors, as defined by ISIC standards, include agriculture; forestry and fishing; manufacturing; electricity industry; and services. This indicator is also known as water withdrawal intensity. [4] According to Food and Agriculture Organization, ″total freshwater withdrawal is the sum of surface water withdrawal and groundwater withdrawal ...
Infographic of water footprints around the world. A water footprint shows the extent of water use in relation to consumption by people. [1] The water footprint of an individual, community, or business is defined as the total volume of fresh water used to produce the goods and services consumed by the individual or community or produced by the business.
Global map of countries by total renewable internal freshwater resources (billion cubic meters) in 2020, according to World Bank [1]. This is the list of countries by total renewable water resources for the year 2020, based on the latest data available in January 2024, by World Bank and Food and Agriculture Organization (AQUASTAT data). [2]
There are two types of water scarcity. One is physical water scarcity and the other is economic water scarcity. [2]: 560 Some definitions of water scarcity look at environmental water requirements. This approach varies from one organization to another. [15]: 4 Global water consumption 1900–2025, by region, in billions m 3 per year
Improved water, energy, and food security on a global level can be achieved through a nexus approach [17] —an approach that integrates management and governance across sectors and scales. [18] A nexus approach can support the transition to a green economy , which aims, among other things, at resource use efficiency and greater policy coherence .
Irrigation schemes in the world use about 3 500 km 3 water per year, of which 74% is evaporated by the crops. [7] This is some 80% of all water used by mankind (4 400 km 3 per year). The water used for irrigation is roughly 25% of the annually available water resources (14 000 km 3) and 9% of all annual river discharges in the hydrological cycle.
Water resources are natural resources of water that are potentially useful for humans, for example as a source of drinking water supply or irrigation water. These resources can be either freshwater from natural sources, or water produced artificially from other sources, such as from reclaimed water or desalinated water (). 97% of the water on Earth is salt water and only three percent is fresh ...
Development of water abstractions (sum of return flows and consumptive use) and water consumption (the amount of water that is evapotranspired or incorporated in products, light colours) of the five water use sectors considered in WaterGAP for 1901–2010 [26]