Research conducted by Boston College and Princeton University indicates that in the face of environmental, health, and technological crises, Americans are more inclined to take action when both scientists and ordinary citizens support a solution rather than when government or industry leaders endorse it. This finding highlights the significant influence of combined expert and public consensus over institutional authority in motivating societal engagement.
What Happened
The study, published in the Proceedings of the National Academy of Sciences in 2026, encompasses four experiments involving approximately 55,000 American participants. Researchers from Boston College and Princeton University examined how public willingness to act on major issues—such as climate policy, adoption of electric vehicles, sustainable protein consumption, vaccine uptake, AI regulation, misinformation, and data privacy—is affected by knowledge of which societal groups support or oppose proposed solutions.
Across the experiments, participants were presented with policy or product options differentiated mainly by whether scientists, fellow citizens, government bodies, or private companies endorsed or opposed them. The researchers measured outcomes including policy support, product choice, donation behaviors, and online engagement with relevant content. Two experiments were conducted online using hypothetical choices, while two others tested real-world behavior, including decisions to donate part of a financial bonus to a nonprofit focused on data privacy and response to targeted advertisements about energy-saving appliances.
Key Facts
Lead author Anandita Sabherwal and senior author Gregg Sparkman identified that the greatest influence on public action came from combined endorsements by scientists and ordinary citizens, regardless of opposition from government or industry. This pattern remained consistent across diverse issue areas and political affiliations.
Specifically, the presence of joint support from scientists and citizens increased participants’ likelihood to endorse policies, select related sustainable products, contribute financially to nonprofits, and interact with social media messages promoting solutions.
The research controlled for opposition from powerful institutions, demonstrating that such resistance did not significantly deter public engagement when scientist-citizen consensus was apparent.
What This Means
This study offers valuable insight into public mobilization dynamics, suggesting that official or corporate endorsement is not the sole or even the dominant driver of societal action on critical challenges. Instead, the convergence of scientific credibility with perceived peer consensus appears to motivate individuals to engage meaningfully with solutions.
This has implications for how public campaigns and policy advocacy might be structured. Emphasizing clear, united messaging between experts and community members could be more effective than relying on government or business authorities, especially when those institutions face skepticism or fail to act decisively. The findings also suggest that grassroots participation and transparent communication from scientists are key levers in overcoming institutional inertia and fostering collective action.
For citizens, this may reinforce their own agency in influencing change alongside expert guidance, countering feelings of helplessness during times of institutional failure or gridlock.
Background
Prior research has often underscored the importance of trust in governments and corporations in shaping public behavior. However, this study distinguishes itself by exploring the interplay of multiple societal voices and specifically testing combinations of endorsements rather than single sources alone.
The focus on paired signals—from scientific and social consensus—reflects a broader effort in social psychology to understand how group dynamics and perceived majority opinion influence decision-making in complex societal contexts.
What Comes Next
The research team plans to expand this line of inquiry by testing whether these findings hold in other countries where trust levels in government, scientists, and citizens differ markedly. They aim to ascertain if scientists and citizens consistently mobilize action universally, or if the most effective influencers vary by cultural and political context.
Sources
This article is based on reporting and publicly available information from the following sources:
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