Regional Carrying Capacities of Freshwater Consumption—Current Pressure and Its Sources
Overconsumption
Carrying Capacity
Consumption
Virtual water
Planetary boundaries
DOI:
10.1021/acs.est.0c01544
Publication Date:
2020-06-23T21:05:08Z
AUTHORS (3)
ABSTRACT
Sustainable freshwater management is an essential target for sustainability. The concept of planetary boundaries evaluates whether the environmental loads from humans are within carrying capacity environment at a global level, while region-specific assessment capacities consumption can complement global-scale sustainability by shedding light on regional We show that 24% total exceeds based spatially and temporally explicit analysis (monthly data around 11 000 watersheds). Although 19% current determined as "luxury consumption" beyond basic needs, approximately 60% exceedance attributed to needs sustaining human life. International trade alleviates overall pressure 4.8% (18.9 billion m3) level through virtual water trade; however, several producer countries demonstrate additional overconsumption capacities, importer do so mitigate overconsumption. Appropriate irrigation location crop production keys maintain our levels scale. However, measures necessitate consideration watershed-specific economic conditions desirable.
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