Visual FOG: John Tierney vs. Arthur Conan Doyle

The bubbling batches of lines below capture the first thousand words of Tierney's article Engineer the Climate? (top) and the Conan Doyle's Sherlock Holmes: A Scandal in Bohemia. Width of each line indicates sentence length; bumps show words of three or more syllables. Which is the more difficult read?

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The Tierney article is more difficult, at least by Gunning Fog Index, which suggests 18 years of education for Tierney (40% of 45: the words in the flattened sentence equivalent) and 12 years for Conan Doyle (40% of 30).