《Table 1Statistics of key words and centrality in CSSCI in recent ten years》

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《Current Situation and Hot Spots of Domestic Climate Changes——Based on Bibliometric Analysis of CSSCI Source Periodicals in 1996-2016》

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According to the statistics of sample key words，there were nearly 50 high-frequency words involved in 3 785 papers.To better explore the hot topics in climate change research in recent years，based on bibliometric analysis methods，we used key words ranked in the forefront of high-frequency key words，and extracted the top 30 key words（as listed in Table 1）.High-frequency key words reflect the convergence of the attention of relevant researchers in the past 20 years and represent a research hot spot in this field.Table 1 indicates that the research fields of climate change in recent years involve a wide range of topics，including basic research on the measurement dimension of climate change itself，as well as studies and reflections on relevant social，economic，and political fields triggered by climate change.Besides，due to the special nature of climate change，its global and cooperative characteristics have also become increasingly prominent，making climate change become a research hot spot of researchers.Among these key words，low carbon economy had the highest frequency（194 times），indicating that the low carbon economy has received wide attention in the field of climate change research；other high frequent words included carbon emissions，China，sustainable development，precipitation，temperatures，greenhouse gases，carbon taxes，the European Union.These words appeared more than 30 times and could basically reflect main research hot spots of domestic climate change.