An attack on science? Media use, trust in scientists, and perceptions of global warming
An attack on science? Media use, trust in scientists, and perceptions of global warming
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DOI：
10.1177/0963662513480091
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发表时间：
2014-10-01
影响因子：
4.1
通讯作者：
Maibach, Edward
中科院分区：
文献类型：
--
作者：
Hmielowski, Jay D.;Feldman, Lauren;Maibach, Edward
美国保守派和自由派对全球变暖问题的理解分歧越来越大。先前的研究表明，美国公众对党派媒体的依赖是造成这种差距的原因之一。然而，研究人员尚未确定中介变量来解释媒体使用与公众对全球变暖的看法之间的关系。几项研究表明，对科学家的信任是许多人在报告他们对科学相关话题的看法时使用的一个重要启发式方法。这项研究使用了具有全国代表性的美国人样本中的受试者内部小组数据，发现对科学家的信任在新闻媒体使用对全球变暖的看法的影响中起到了中介作用。结果表明，保守的媒体使用减少了对科学家的信任，这反过来又降低了全球变暖正在发生的确定性。相比之下，非保守媒体的使用增加了对科学家的信任，这反过来又增加了全球变暖正在发生的确定性。
There is a growing divide in how conservatives and liberals in the USA understand the issue of global warming. Prior research suggests that the American public's reliance on partisan media contributes to this gap. However, researchers have yet to identify intervening variables to explain the relationship between media use and public opinion about global warming. Several studies have shown that trust in scientists is an important heuristic many people use when reporting their opinions on science-related topics. Using within-subject panel data from a nationally representative sample of Americans, this study finds that trust in scientists mediates the effect of news media use on perceptions of global warming. Results demonstrate that conservative media use decreases trust in scientists which, in turn, decreases certainty that global warming is happening. By contrast, use of non-conservative media increases trust in scientists, which, in turn, increases certainty that global warming is happening.