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Groundwater contamination from canals - Hat Yai, Thailand
In areas where surface water is not readily available (located far away from areas where it is needed), groundwater is the primary water source. This graphic shows the chloride concentration and the potassium concentrati...
17 May 2005 - by Delphine Digout, UNEP/GRID-Arendal
Transportation projects converging on the Caspian Sea
For many years, coastal navigation has connected republics in the former Soviet Union. It used the only outlet from the Caspian, the Volga-Don canal, which connects the Black Sea and the Russian canal system to the Balti...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
When the city harms its own water resources
In areas where surface water is not readily available (located far from areas of need), groundwater is the primary water source. Groundwater aquifers supply an estimated 20% of the global population living in arid and se...
01 Oct 2009 - by Philippe Rekacewicz