{"id":"S2008119761","label":"Environmental policy--United States--History","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2008119761","normalized_label":"environmental policy--united states--history","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2008119761","provider":"lcsh","revision":"39a301daa68ffc99","taxonomy_revision":"f050b5d4780b1289","title":"Environmental policy--United States--History","url":"/topics/S2008119761","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5476390368507471460","address_version":"morton4x16-v1","coordinates":[0,478,50663,17408],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}