Communicating Climate Change: Closing the Science-Action Gap

What the evidence shows

This study provides one of the field’s most cited diagnoses of why two decades of climate change communication had, by 2010, failed to translate broad public awareness into the sustained engagement and action that the scale of the problem demands. Moser and Dilling argue that the failure is not primarily one of public ignorance or indifference, but of communicator assumptions — four deeply embedded and largely untested beliefs about how communication works that have repeatedly produced strategies misaligned with how people actually process information and motivate behaviour.

The four faulty assumptions are: that a lack of information explains a lack of action (“inspiration with information,” the information deficit model); that fear and catastrophic imagery will motivate people to act (“mobilisation by fear”); that a scientific framing of climate change is universally compelling (“one size fits all”); and that mass media is the most effective channel for mobilising the public (“mobilisation through mass media”). For each, the authors present the research evidence that undermines the assumption and offer evidence-based alternatives.

The chapter concludes with a broader argument about communication’s role in a democracy: effective climate communication is not one-way persuasion of a passive audience, but the facilitation of two-way engagement that enables citizens to make informed, values-grounded decisions and demand systemic change. Communication, the authors insist, is necessary but not sufficient — it must be supported by policy, economic, and infrastructure changes that make the desired actions actually possible.

Key Findings

• The information deficit model is empirically wrong and potentially counterproductive. Knowledge about climate change is only moderately correlated with concern or behaviour change; better information can paradoxically undermine engagement by feeling overwhelming, creating a sense of “having done something,” or reinforcing resistance. What actually drives behaviour change is values, perceived efficacy, social support, incentives, and practical assistance — not information alone.

• Fear appeals routinely backfire, especially without accompanying solutions. Dire imagery and catastrophic framing tend to produce denial, numbing, and apathy rather than action — psychological responses that manage the experience of fear rather than the actual threat. Conservative audiences are particularly resistant to fear-based appeals. The research consistently shows that “what grabs attention is often not what empowers action.”

• A “one size fits all” scientific framing fails most audiences. Science is not of central interest to most people; technical framing can be experienced as exclusionary or condescending. Effective communication requires deep audience knowledge — understanding values, mental models, trusted messengers, preferred channels, and cultural worldviews — before selecting any frame or message.

• Communication alone cannot close the science-action gap. Even perfectly executed communication will fail if the structural conditions for action are absent. Policy, economic incentives, and infrastructure changes must accompany communication to make concern actionable — a finding the authors call the “finite pool of worry” problem: attention rises and falls, but structural change enables action even when attention is elsewhere.

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Standout data points

• 9% behaviour change rate from persuasive mass media campaigns (in health communication, where personal salience is higher than for climate) — cited from Maibach et al. (2008). The authors use this to argue that the expected return on mass media-only climate campaigns is modest at best, and likely lower given climate’s greater psychological distance.

Examples of how Understories uses this research

• Actionability The finite pool of worry finding and the structural conditions argument together establish that actionability is not optional — it is the mechanism by which communication converts concern into change.

• Clarity The “one size fits all” diagnosis directly informs clarity scoring: a message that is clear to a scientist or advocate may be jargon-laden and exclusionary to its intended audience.

• Solution focus The chapter provides the foundational argument for why solution-focus matters: diagnosis without treatment produces denial. The 60–70% solution-focus benchmark used elsewhere in the library is grounded in the mechanism this chapter identifies.

• Beneficence The chapter’s entire orientation is toward communication that genuinely serves public understanding and democratic engagement — not persuasion of a passive audience. Its critique of condescending deficit-model approaches and its call for facilitated dialogue are explicitly oriented toward respecting citizens as agents.

• Autonomy The chapter’s democratic communication framework — two-way engagement, facilitated dialogue, values-grounded deliberation — is the most autonomy-respecting vision in the library. However, the audience segmentation and framing recommendations could be misapplied to manipulation rather than service.

Key quote

“The principal problem with fear as the main message of climate change communication is that what grabs attention (dire predictions, extreme consequences) is often not what empowers action.”

© 2011 Oxford University Press — All rights reserved.

Library entry updated: 30 September 2026.