I next crontrolled for this possibility by deleting the sentence in question from the climate strategy document, which I resaved as Climate Strategy Memo 2 (docx) and reran the same three analyses, using the original, full strategy document as one of the possible known authors, and got the following results: (planet3.org)
The Heartland Institute still claims that it's 2012 Climate Strategy memo is fake, contradicting Dr. Peter Gleick, the source of the Heartland Institute documents leak. (polluterwatch.com)
The Heartland Institute today released more evidence that Pacific Institute President Peter Gleick was the likely author of a fake «climate strategy memo» that Gleick originally claimed came from a «Heartland insider,» and later said he received «in the mail» from an anonymous source. (fakegate.org)