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日本ヒートアイランド学会論文集 Vol.16 (2021)

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Long-term trends of newspaper coverage on climate change and summer heat

藤部文昭 Fumiaki Fujibe*1 松本 淳 Jun Matsumoto *1 

*1 東京都立大学都市環境学部 Faculty of Urban Environmental Sciences, Tokyo Metropolitan University


Online search systems of four major newspapers in Japan were used to find long-term changes in the coverage of key words related to climate change and summer heat for the period 1990 to 2019. It is shown that the coverage of "global warming" has an interannual variation with maxima corresponding to the publication of IPCC reports, with a distinct surge from 2007 to 2010. On the other hand, the coverage of "heat island" decreased markedly and that of "heat stroke" increased rapidly in the 2010s.