1. Water reuse: a key strategy for addressing water challenges
Water, essential to life on Earth, has a total volume of approximately 1.4 billion km 3 . However, only 2.8% of this volume is freshwater, and only 37,000 km 3 is available globally. This amounts to nearly 5,000 m 3 per person per year, but with a highly uneven distribution across continents, countries, and even regions.
Freshwater withdrawals account for 10.5% of the average annual replenishment of freshwater resources. This rate varies considerably from one continent to another depending on population density and the abundance of the resource: Asia (41.3%), North America (8.8%), Africa (6.6%), Europe (4.2%), Australia and Oceania (2.9%), South America (1.7%)
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Water reuse: a key strategy for addressing water challenges
There are many possible uses for reusing wastewater
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Bibliography
- (1) - UNESCO - Rapport mondial des Nations unies sur la mise en valeur des ressources en eau – Eaux souterraines : rendre visible l'invisible. - (2022). https://unesdoc.unesco.org /ark:/48223/pf0000380726_fre ...
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