Dam building

We're Paying the Price Today for Decades of Relentless Dam Building
Thursday 18 September 2008
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by: Rachel Olivieri, AlterNet

...Aldo Leopold, the legendary and visionary U.S. Forest Service land manager of the 1920s, 30s, and 40s said dams make the land sick and provide only a temporary prosperity followed by tremendous vulnerability. This ecological reality is incontrovertible - all dams have an end date.
California leads the list with dams near self-cancellation. Within the next generation, 85 percent of all U.S. dams will have degenerated to the point of exhausting their operational lifespan of fifty years requiring decommissioning or massive repairs and upgrades. Now consider that every sweet spot in every geologically sane canyon that might reasonably hold a dam already has an aging dam, what then?...