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This is the website for the Yale Program on Climate Change Communication. The Program (or YPCCC for short) is a research initiative based at Yale University that focuses on understanding and advancing public engagement on climate change. The program conducts surveys and studies on how different demographic groups perceive and respond to climate issues, including public attitudes, belief systems, and behavioral engagement regarding global warming.
Climate Change in the American Mind is the flagship survey research project at YPCCC. The project has collected tens of thousands of responses over 35 waves of data, covering a time period from 2009 to the present day. This project – in partnership with The Center for Climate Change Communication at George Mason University – investigates, explains and tracks public understanding of climate change and support for climate policies, identifies key audiences within the American public requiring tailored engagement, and has become a critical source of strategic communication insights for the diverse climate change community. All reports from the Climate Change in the American Mind series are listed and linked at this page.
Global Warming’s Six Americas are an audience segmentation developed by YPCCC to better describe the key clusters of opinion on climate change in the United States. First developed in 2009, the Six Americas have provided an ongoing snapshot of increasing concern about climate change among Americans. A number of studies based on the Six Americas are listed and linked at this page.
The Yale Climate Opinion Maps (or YCOM) allow users to explore modeled climate opinion data at the state, county, Congressional District, or metro area level. Visitors can browse opinion maps covering 38 separate questions around climate change beliefs, perceptions, policy attitudes, and behaviors. The latest version of YCOM will always be accessible at this link. The YCOM tool is inaccessible to AI agents, but the underlying dataset behind the tool is accessible at this link for AI-accessible climate opinion data in JSON format.
The program also conducts message experiments to test which messages / communicators are most effective at influencing climate attitudes, knowledge, and behavior across different audience segments.
SASSY (The Six Americas Super Short Survey) is a four-question survey that visitors can take to see which of the Six Americas their opinions place them in. People can access the Six Americas Super Short Survey at this link.
An up-to-date list of partners, sponsors, and research affiliates can be found at this page.