Extreme Weather Doesn't Move Chinese Public—But COVID-19 Does

What the Study Asks

Do climate-related extreme weather events change how people in China think about, know about, or pay attention to climate change? Xun Cao probes whether direct exposure to extreme events translates into greater concern, better knowledge, or more online attention to climate issues.

How the Study Was Done

The analysis uses two complementary empirical strategies. First, extreme weather event records from the Emergency Events Database (EM-DAT) were matched to the 2010 Chinese General Social Survey (CGSS) at the prefecture level to test whether residents in places with more documented extreme events report higher perceived damage from climate change or stronger factual knowledge about it. Second, for 2020 Cao manually compiled local newspaper records of extreme weather for five eastern and southeastern Chinese provinces and linked those events to daily Baidu search-volume indices at the prefecture-day level to test whether local extreme events spur short-term public attention online.

Key Findings

• No measurable link was found between the frequency of extreme weather events in a prefecture and respondents' beliefs that climate change is damaging or their factual knowledge about the topic in the 2010 CGSS data.
• No detectable association emerged between local extreme weather reports (from the five-province 2020 newspaper sample) and Baidu search volume for climate change at the prefecture-day level.
• By contrast, prefecture-days with higher local COVID-19 case counts saw increased Baidu searches for climate change and environmental topics, consistent with the "great reflection" thesis that large societal shocks can heighten public attention to broader, long-term challenges.

Why This Matters

These results suggest that, in China, experiencing or reading about extreme weather alone may not be sufficient to raise public concern, knowledge, or search-driven attention to climate change; instead, broader crises like the COVID-19 pandemic appear more effective at prompting public reflection on systemic risks. The findings have implications for theories linking personal experience to environmental attitudes and for policymakers and communicators relying on salient weather events to mobilize public engagement on climate issues.

Data and Transparency

The study combines national survey data (CGSS 2010), the international EM-DAT event records, and localized 2020 newspaper event coding matched to Baidu search indices, enabling analyses at both prefecture and prefecture-day temporal scales.