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Figure S1. Between 1950 and 2008, the total annual number of news articles and scientific publications digitally archived has increased. (A) Articles within Google News Archive containing the word ``the,'' and (B) publications indexed within the WOS.

Figure S2. The annual ratio of news publications within Google News Archive to research publications within WOS for acid rain, DDT, and elephant ivory.

FilenameFormatSizeDescription
CONL_294_sm_FigureS1.pdf6KSupporting info item
CONL_294_sm_FigureS2.pdf6KSupporting info item

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