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Supertopics:
Reasons that Food Yields Are Declining
Aquifers (Groundwater; Water Tables)
Types of Water Being Overused

Aquifer (Groundwater) Depletion

Cross-References:

Subtopics:
webRobert E. UlanowiczA Prosperous Way Down2015-02-04
webJoe RommUnited Nations University2014-11-04
webSandra PostelNational Geographic Newswatch2014-08-05
webLisa M. KriegerSan Jose Mercury News2014-03-29
webSuzanne GoldenbergThe Guardian2014-02-08
webJ.N. SbrantiModesto Bee2013-11-21