Headline: America Less Polluted Every Year, Thanks To U.S. WealthLink: http://news.investors.com/blogs-capital-hill/031215-743275-wealthy-nations-clean…Publication Date: Friday, March 13, 2015Primary Source: Investor's Business Daily OnlineNon-Cato Author: Kerry JacksonType: new media postFormat: New MediaNature of Mention: featuredScholar: CatoResearch Area: Health, Welfare & EntitlementsSubjects: pollution