Files include correspondence relating to Pohl's sabbatical leave, research including communications with international colleagues and correspondence with his graduate students; notes on energy which comprise reference files of clippings and handwritten notations; published reports on nuclear waste and waste sites, contaminated and non-contaminated sites, high-level nuclear waste disposal, reactor decommissioning, reactor accidents, radiation health effects, EPA studies and specific sites of radwaste contamination, carbon dioxide, thermal studies in high-level waste disposal, and uranium mill tailings.