Farm salt poisoning costs $27 billion annually

http://feeds.newscientist.com/c/749/f/638484/s/3fe424fe/sc/30/l/0L0Snewscientist0N0Carticle0Cdn264620Efarm0Esalt0Epoisoning0Ecosts0E270Ebillion0Eannually0Bhtml0Dcmpid0FRSS0QNSNS0Q20A120EGLOBAL0Qnews/story01.htm

Salt is poisoning 2000 hectares of farmland daily, cutting crop yields in some areas by as much as 70 per cent

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