By Annenberg Public Policy Center of the University of Pennsylvania

In a paper published in the current issue of the Journal of Health Communication by Annenberg Public Policy Center (APPC) researchers finds evidence that holding science-consistent beliefs about the public health effects of climate change is an important predictor of support for policies that address climate threats.

In “Science-Consistent Climate Health Beliefs as Predictors of Climate Behaviors and Support for Inflation Reduction Act Provisions and a Carbon Emissions Tax,” a research team from the Annenberg Public Policy Center of the University of Pennsylvania examined the relationship between health-related beliefs about climate change and support for climate policy proposals, as well as a willingness to advocate for climate policies and to report engaging in pro-climate behaviors.

The researchers found that science-consistent beliefs about the effects of climate change on public health predicted support for climate action, even after controlling for belief in the existence and cause of climate change.

“In this study, people who believe that these public health effects of climate change are real were more likely to support climate action, regardless of whether they said they believed that climate change is real and human-caused,” said lead author Shawn Patterson Jr., a research analyst at APPC.

The public health dangers posed by climate change include increased water-borne illnesses, bug-borne diseases, effects on crops, and premature births, among others. The World Health Organization (WHO) estimates that climate change will cause about 250,000 additional deaths per year between 2030 and 2050 “from undernutrition, malaria, diarrhea and heat stress alone.”

The finding that science-consistent beliefs about these health risks predicts support for climate action has important implications for messaging about climate change.

“This study provides additional evidence that belief grounded in science-consistent knowledge matters,” said Kathleen Hall Jamieson, director of APPC and a co-author of the study.

In addition to Patterson and Jamieson, the study was co-authored by Patrick E. Jamieson, director of the Annenberg Health and Risk Communication Institute at APPC.

The data for the study were drawn from the Annenberg Science and Public Health (ASAPH) knowledge survey.

More information: Patterson, S., Jamieson, P. E. and Jamieson, K. H., ‘Science-Consistent Climate Health Beliefs As Predictors of Climate Behaviors and Support for Inflation Reduction Act Provisions and a Carbon Emissions Tax’, Journal of Health Communication (vol. 29, sup1, pp. 28–36; 2024); DOI: 10.1080/10810730.2024.2360617. Annenberg Public Policy Center of the University of Pennsylvania Press Release. Featured image credit: NOAA | Unsplash

Image: Beautiful shot of the dolphin silhouette in the water (s. ocean heat, climate change)
Extreme ocean heat does not mean climate change is accelerating: studyClimate

Extreme ocean heat does not mean climate change is accelerating: study

An extraordinary jump in ocean temperatures in 2023 and 2024 was at the extreme end of expectations from global warming and would have been "practically…
SourceSourceMarch 13, 2025 Full article
Image: a lake surrounded by trees in the middle of a forest
Unprecedented warming threatens earth’s lakes and their ecosystemsClimateScience

Unprecedented warming threatens earth’s lakes and their ecosystems

By Institute for Basic Science Lakes, with their rich biodiversity and important ecological services, face a concerning trend: rapidly increasing temperatures. A recent study published…
SourceSourceJuly 12, 2024 Full article
Image: Closeup shot of yellow blossom on a tree and a sea
Europe’s summer could lengthen by 42 days by 2100Climate

Europe’s summer could lengthen by 42 days by 2100

New research reveals for the first time why Europe could gain more than an extra month of summer days by 2100 using climate data from…
SourceSourceNovember 19, 2025 Full article