People as sensors: Mass media and local temperature influence climate change discussion on Twitter
People as sensors: Mass media and local temperature influence climate change discussion on Twitter
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DOI：
10.1016/j.gloenvcha.2014.11.003
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发表时间：
2015-01-01
影响因子：
8.9
通讯作者：
Stepchenkova, Svetlana O.
中科院分区：
文献类型：
--
作者：
Kirilenko, Andrei P.;Molodtsova, Tatiana;Stepchenkova, Svetlana O.
这项研究调查了生活在美国的人们是否将他们的感官体验与当地温度与气候变化联系在一起，以及大众媒体是否影响了这一过程。我们用推特上包含“气候变化”和“全球变暖”两个词的推文数量作为公众对这一问题关注程度的指标。具体地说，目标是：(1)调查人们是否立即注意到重大的当地天气异常，如偏离长期平均气温，并通过在Twitter上推动气候变化讨论将它们与气候变化联系起来；(2)检查大众媒体在这一过程中的作用。在两年的时间里(2012-2013)，收集了超过200万条推文，并分配到了美国大陆的157个城市地区。关于气候变化的推文速度是根据时间变量、在大众媒体上发表的气候变化出版物的数量和一些温度变量来回归的。这项分析是在国家和地方两个层面上进行的。在大多数回归模型中，大众媒体和温度变量的高度重要性表明，天气和大众媒体报道都控制着公众对该话题的兴趣。然而，没有发现令人信服的证据表明媒体在当地天气和气候变化话语之间的关系中扮演了调解人的角色。总体而言，调查结果证实，公众认识到极端温度异常，并将这些异常与气候变化联系起来。(C)2014爱思唯尔有限公司。保留所有权利。
This study examined whether people living in the US connect their sensory experiences with local temperature to climate change and whether mass media influences the process. We used the volume of Twitter messages containing words "climate change" and "global warming" as the indicator of attention that public pays to the issue. Specifically, the goals were: (1) to investigate whether people immediately notice substantial local weather anomalies such as deviations from long-term mean temperatures and connect them to climate change by contributing to climate change discourse on Twitter and (2) to examine the role of mass media in this process. Over 2 million tweets were collected for a two-year period (2012-2013) and were assigned to 157 urban areas in the continental US. The rate of tweeting on climate change was regressed on the time variables, number of climate change publications in the mass media, and a number of temperature variables. The analysis was conducted at the two levels of aggregation - national and local. The high significance of the mass media and temperature variables in the majority of regression models suggests that both the weather and mass media coverage control public interest to the topic. However, no convincing evidence was found that the media acts as a mediator in the relationship between local weather and climate change discourse. Overall, the findings confirmed that the public recognize extreme temperature anomalies and connect these anomalies to climate change. (C) 2014 Elsevier Ltd. All rights reserved.