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Groundwater is an important water resource for the supply of drinking water, especially in arid countries. The Arab region is one of the most water-scarce in the world and groundwater is the most relied-upon water source in at least 11 of the 22 Arab states. Over-extraction of groundwater in many parts of the region has led to groundwater table ...
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]
Ecosystems around the world are at risk from declining levels of underground water, a study has found — and protected areas aren’t growing fast enough to stem the losses. ... These groundwater ...
Water resources are under threat from multiple issues. There is water scarcity, water pollution, water conflict and climate change. Fresh water is in principle a renewable resource. However, the world's supply of groundwater is steadily decreasing. Groundwater depletion (or overdrafting) is occurring for example in Asia, South America and North ...
The groundwater that supplies farms, homes, industries and cities is being depleted across the world, and in many places faster than in the past 40 years, according to a new study that calls for ...
Across the world there’s a rapid depletion in the underground reserves of water that billions of people rely on for drinking, irrigation and other uses, new research has found.
Most water in Earth's atmosphere and crust comes from saline seawater, while fresh water accounts for nearly 1% of the total. The vast bulk of the water on Earth is saline or salt water, with an average salinity of 35‰ (or 3.5%, roughly equivalent to 34 grams of salts in 1 kg of seawater), though this varies slightly according to the amount of runoff received from surrounding land.
According to Food and Agriculture Organization, ″total freshwater withdrawal is the sum of surface water withdrawal and groundwater withdrawal″. [3] [Total freshwater withdrawal (surface water + groundwater)] = [Total water withdrawal] - [Desalinated water produced] - [Treated wastewater reused] - [Reused agricultural drainage water]