The UN climate summits represent decisive moments for climate change policy. Under significant media coverage, world leaders gather for intense negotiations over policies to address global warming. Given the enormous political, economic, and environmental issues at stake, news media typically frame these summits in terms of success or failure. Still, we know surprisingly little about how these mediated mega events influence public perceptions both during and beyond the specific summit. Focusing on the 2021 Glasgow summit (COP26), this study combines a media content analysis and a two-wave panel survey with a rolling cross-section component, to determine how news framing influenced both summit-specific and more generic climate change beliefs among citizens in Sweden. Findings show (1) that beliefs about the success/failure of the summit took shape immediately following the summit, (2) that news framing effects were particularly pronounced when the final agreement was settled, and (3) that these instantaneous framing effects on summit-specific beliefs left small but lasting imprints on citizens’ generic climate change beliefs several weeks after the summit. These findings have implications for both climate opinion and theories of dynamic news framing effects.

中文翻译：

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成功还是失败？COP26格拉斯哥峰会的新闻框架及其对公民气候变化信念的影响

联合国气候峰会是气候变化政策的决定性时刻。在媒体的大力报道下，世界领导人齐聚一堂，就应对全球变暖的政策进行激烈谈判。考虑到巨大的政治、经济和环境问题，新闻媒体通常会根据成功或失败来描述这些峰会。尽管如此，令人惊讶的是，我们对这些中介的大型事件如何影响特定峰会期间和之后的公众看法知之甚少。这项研究以 2021 年格拉斯哥峰会 (COP26) 为重点，将媒体内容分析和带有滚动横截面成分的两波小组调查相结合，以确定新闻框架如何影响公民对峰会特定和更普遍的气候变化信念在瑞典。调查结果显示：(1) 关于峰会成功/失败的信念在峰会结束后立即形成，(2) 当最终协议达成时，新闻框架效应尤其明显，(3) 这些瞬时框架效应对峰会- 峰会几周后，具体的信念在公民的一般气候变化信念上留下了微小但持久的印记。这些发现对气候舆论和动态新闻框架效应理论都有影响。