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Things Made with Petroleum
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Fertilizer

Subtopics:
webBarbara PleasantMother Earth News2010-10-01
webSteve SolomonMother Earth News2006-06-01
webGrowAnything.com2015-12-04
webAnne Bikle & David R. Montgome...Nautilus2016-03-31
webSara RubinAl Jazeera2014-12-25
webScienceDaily2014-08-31
webRichard HarrisNPR2009-08-28
webAri LeVauxAlterNet2016-04-02
webHeinrich Boll Stiftung2015-01-01