about
earth without water ,water shortage,water places, reason of water shortage , water gathering , underground water
Answers
Answer:
about
earth without water ,water shortage,water places, reason of water shortage , water gathering , underground water
Explanation:
Water scarcity is the lack of fresh water resources to meet water demand. It affects every continent and was listed in 2019 by the World Economic Forum as one of the largest global risks in terms of potential impact over the next decade.[1] It is manifested by partial or no satisfaction of expressed demand, economic competition for water quantity or quality, disputes between users, irreversible depletion of groundwater, and negative impacts on the environment.[2] One-third of the global population (2 billion people) live under conditions of severe water scarcity at least 1 month of the year.
The essence of global water scarcity is the geographic and temporal mismatch between freshwater demand and availability.[8][9] The increasing world population, improving living standards, changing consumption patterns, and expansion of irrigated agriculture are the main driving forces for the rising global demand for water.[10][11] Climate change, such as altered weather-patterns (including droughts or floods), deforestation, increased pollution, green house gases, and wasteful use of water can cause insufficient supply.
Water scarcity has many negative impacts on the environment, including lakes, rivers, wetlands and other fresh water resources. The resulting water overuse that is related to water scarcity, often located in areas of irrigation agriculture, harms the environment in several ways including increased salinity, nutrient pollution, and the loss of floodplains and wetlands.[15][20] Furthermore, water scarcity makes flow management in the rehabilitation of urban streams problematic.
Aquifer draw down or over drafting and the pumping of fossil water increases the total amount of water within the hydrosphere subject to transpiration and evaporation processes, thereby causing accretion in water vapour and cloud cover, the primary absorbents of infrared radiation in the earth's atmosphere. Adding water to the system has a forcing effect on the whole earth system, an accurate estimate of which hydro-geological fact is yet to be quantified.
When there is not enough potable water for a given population, the threat of a water crisis is realized.[41] The United Nations and other world organizations consider a variety of regions to have water crises of global concern.[42][43] Other organizations, such as the Food and Agriculture Organization, argue that there are no water crises in such places, but steps must still be taken to avoid one.[44]
Effects of water crisis
There are several principal manifestations of the water crisis.
Food security in the Middle East and North Africa Region "Water scarcity alleviation through water footprint reduction in agriculture: The effect of soil mulching and drip irrigation". Retrieved 25 February 2019.
Inadequate access to safe drinking water for about 885 million people
Inadequate access to sanitation for 2.5 billion people,which often leads to water pollution
Groundwater over drafting (excessive use) leading to diminished agricultural yields.
Overuse and pollution of water resources harming biodiversity
Regional conflicts over scarce water resources sometimes resulting in warfare.
Thank you!
hope this helps!