Table 2.

Coding scheme for inductive analysis of in-depth interviews (N = 11)

	Number of mentions
Themes (with associated codes)
Weather is better understood than climate change
Personal experience/anecdotal evidence	27
Hot weather/heat: immediate concerns	23
Pollution: disconnected from weather	6
General understanding of climate change	1
Weather conditions (not climate change)	1
Confusion/misinterpretation/unintended consequences
Dietary advice/advice to lose weight (disconnected from environmental impact, food systems or climate change)	28
Demonstrated gaps in existing knowledge	27
Confusion about meaning	16
Poster offers impractical advice	10
Advice to engage in harmful activity (e.g., advice to engage in walking/biking on poster about heat effects)	6
Health education strategies
Activating existing knowledge	18
Intended audience/who should see	17
Suggested locations/venues to display	13
Health vulnerabilities	13
Not enough information provided	11
Appeal/liking	8
Recognition of self as audience	3
Behavioral modeling	3
Lack of available education on topic(s)	3
Poor populations	1
Shock/fear appeals	1
Attitudes and beliefs about climate change and health
Explains mechanisms of climate change effects on health	17
Own perceptions/explanation of systemic issues	17
Learned something/“aha moment”	11
Emphasis on health (not climate change)	9
Individual behaviors	8
Perceived ignorance of others	7
Environmental triggers or causes of symptoms	7
Apathy about climate change/health	5
Avoidance/denial about climate change/health	4
Policy/government	4
Collective action	2
Clean energy/low pollution	2
Design
Organization/layout	20
Appealing elements	14
Replace cartoons with photos of human faces/figures	9
Feature humans experiencing health effects	9
Suggestions for design	9
Suggestions for content	9
Color	8
Cartoons: appropriate for some	8
Cartoons: off-putting	6
Health literacy concerns	5
Cluttered/too much text	1