World Water Day: UNESCO calls for sustainable use of groundwater
By Agência Estado
A UNESCO report launched on Tuesday, 22, World Water Day, highlights the sustainable use of groundwater, which represents 99% of all available resources on Earth, as one of the ways for the world to overcome the water crisis.
Extreme events such as more severe and prolonged droughts tend to become increasingly common in several regions of the world, the Northeast and Midwest of Brazil among them, according to the latest report of the UN’s Intergovernmental Panel on Climate (IPCC).
Groundwater results from the infiltration of rain into the ground, forming water tables and aquifers, such as the Guarani, which extends from Paraguay, Uruguay, and Argentina to much of the Midwest, South, and Southeast regions of Brazil. There are more than 1.2 million square kilometers and estimated reserves of almost 40 thousand cubic kilometers of water. This true sea under the ground is still behind another aquifer in the national territory, the Great Amazon Aquifer System, with more than 1,3 million km² of extension and about 162 thousand cubic kilometers of reserves…
Source: Agência Estado — Correio Braziliense
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