Summary and Keywords
Human behavior in relation to groundwater has remained relatively unchanged from ancient times until the early 20th century. Intercepting water from springs or exploiting shallow aquifers by means of wells or qanats was common practice worldwide, but only modest quantities of groundwater were abstracted. In general, the resource was taken for granted in absence of any knowledge regarding groundwater systems and their vulnerability. During the 20th century, however, an unprecedent change started spreading globally—a change so drastic that it could be called the Global Groundwater Revolution. It did not surface simultaneously everywhere but rather encroached into different regions as waves of change, with varied timing, depending on local conditions. This Global Groundwater Revolution has three main components: (1) rapid intensification of the exploitation of groundwater, (2) fundamentally changing views on groundwater, and (3) the emergence of integrated groundwater management and governance. These three components are mostly interdependent, although their emergence and development tend to be somewhat asynchronous. The Global Groundwater Revolution marks a radical historical change in the relation between human society and groundwater. It has taken benefits produced by groundwater to an unprecedented level, but their sustainability is assured only if there is good groundwater governance.
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