Online Appendix: Full results of the report Climate-health messages engender support for climate action

The appendix details the effects of various health-related messages on public perception of climate change, concern levels, and support for specific climate policies in four countries. It uses a scoring system to identify which messages most effectively increase the salience of climate change and support for mitigation efforts.

• All tested messages were found to effectively increase the salience of climate change across the surveyed populations.
• The most effective messages for increasing overall support for climate action, based on aggregate message scores, were those focusing on 'Heat and health' (score of 15), 'Children's health' (score of 14), and 'Mental health' (score of 12).
• Messages regarding 'Food and water insecurity' and 'Children's health' were particularly effective at increasing support for climate policies, each receiving a score of 3.
• The data shows varying levels of baseline concern about climate change across the four countries, with South Africa and Brazil showing high levels of 'Very concerned' responses compared to Japan.
• Public support for specific policies varies; for example, 'Building more solar parks/solar farms' and 'Building more offshore wind turbines' are generally supported, while 'A tax on frequent fliers' and 'Require farmers to reduce the use of nitrogen fertiliser' show different levels of support and opposition across the regions.
• Messages focusing on 'Older people's health' (score of 11) and 'Economic and social costs' (score of 10) also showed significant positive effects on overall climate action support.

APA

Climate Opinion Research Exchange (n.d.). Online Appendix: Full results of the report Climate-health messages engender support for climate action. https://climateopinion.org/wp-content/uploads/2026/04/Online-Appendix_-Full-Results.pdf

Chicago

Climate Opinion Research Exchange. Online Appendix: Full results of the report Climate-health messages engender support for climate action. n.d. https://climateopinion.org/wp-content/uploads/2026/04/Online-Appendix_-Full-Results.pdf.

Wikipedia

{{cite report |author=Climate Opinion Research Exchange |title=Online Appendix: Full results of the report Climate-health messages engender support for climate action |url=https://climateopinion.org/wp-content/uploads/2026/04/Online-Appendix_-Full-Results.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{climateopinionresearchexchangendonline, author = {{Climate Opinion Research Exchange}}, title = {{Online Appendix: Full results of the report Climate-health messages engender support for climate action}}, institution = {Climate Opinion Research Exchange}, url = {https://climateopinion.org/wp-content/uploads/2026/04/Online-Appendix_-Full-Results.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }