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"Whenever new and better pollution controls are proposed, defenders of the status quo are quick to argue that we can't afford them. Well, sure, they say -- we could make polluting industries clean up their"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/air-pollution-hurts-worker-productivity-as-well-as-lungs.html>