Measuring our impact on water to ensure sustainable use

Obtaining data on water uses in order to ensure its effective and sustainable management is the simple idea put forward by the Water Footprint Network Foundation, based on the water footprint concept pioneered by Professor Arjen Hoekstra of Twente University in the Netherlands. The inventive project stems from a global analysis of what constitutes a public good and how to protect a resource when open access to it leads to overexploitation. Many economists are trying in similar ways to reintroduce the "natural resource" variable in calculations used to construct a sustainable economy. One such economist, Pavan Sukhdev, has proposed to incorporate "natural capital" into the models. His concept of "environmental accounting" takes into account the [...]

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The depletion of world groundwater tables and the issue of food security

The rate of water removal from groundwater tables worldwide more than doubled between 1960 and 2000, according to researchers at the University of Utrecht. Published in the journal Geophysical Research Letters, their study concludes that the share of non-renewed water rose from 126 km3 to 283 km3 over the same period with a notable peak in the 90′s.

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