| http://www.w3.org/ns/prov#value | - sult to injury, every year farmers lose thousands of acres of arable land to urban and suburban sprawl and more tons of topsoil than they produce of grain and other field crops to attrition.Half the Earth???s original trove of topsoil, like that which once permitted the American Midwest to feed the world, has been lost to wind and erosion.
|
