Stockholm International Water Institute » blue water http://www.siwi.org Water Wise World Wed, 18 Sep 2013 12:00:33 +0000 en-US hourly 1 http://wordpress.org/?v=3.5.1 Stockholm Water Front No. 3-4 2008 http://www.siwi.org/publication/stockholm-water-front-no-3-4-2008/ http://www.siwi.org/publication/stockholm-water-front-no-3-4-2008/#comments Thu, 15 Nov 2012 16:39:48 +0000 admin http://www.siwi.org/publication/stockholm-water-front-no-3-4-2008/ Expanding water pollution, depleted river streamflow, overdrawn groundwater, water usability threatened by salinisation, and water for ecosystems is sinking below the acceptable minimum point indicates that the era of easy access to blue water is coming to an end in many regions of the world. The concept is called Peak water and is explained further in this issue of Water Front.

]]> http://www.siwi.org/publication/stockholm-water-front-no-3-4-2008/feed/ 0 Tipping Elements, Planetary Boundaries and Water http://www.siwi.org/publication/tipping-elements-planetary-boundaries-and-water/ http://www.siwi.org/publication/tipping-elements-planetary-boundaries-and-water/#comments Sun, 15 Nov 2009 16:44:23 +0000 Nora http://www.siwi.org/publication/tipping-elements-planetary-boundaries-and-water/ The human imprint on the hydrological cycle is now apparent on a global scale. About 40 percent of the total global runoff (“blue water”) is now intercepted by large dams and impounded before it flows to the oceans. In many parts of the world, extraction of water from river systems has become so complete that about 25 percent of the world’s rivers run dry before they reach the ocean. In other parts of the world, such as the central United States and the Chad Basin in Nigeria, extraction of groundwater is occurring at rates much higher than recharge flows, leading to the eventual depletion of the resource.

Published in Water Front Magazine No. 3-4 2009.

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