An article by Drake Bennett in the the Boston Globe, "The Future of Dirt" (April 27, 2008), states that "An increasing number of scientists are starting to emphasize the extent to which soil - even more than petroleum or water or air - is a limited and fragile resource. Managing it better, and even improving it, will be vital to any equation that allows the earth to support the more than 9 billion people the UN estimates will live on the planet by midcentury."
The article quotes soil experts including Rattan Lal, a member of the Soil and Water Conservation Society.
The full article is available here:
http://www.boston.com/bostonglobe/ideas/articles/2008/04/27/the_future_of_dirt/
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