Promoting Pro-environmental Beliefs and Behaviour: Choose-Your-Own Story Futuristic Climate Game

PLOS ONE | https://doi.org/10.1371/journal.pone.0317773 March 31, 2025 7 / 18 PLOS ONE Promoting Pro-environmental Beliefs and Behaviour Table 2. The List of Main Variables of Interest. Experienced emotions Please indicate the extent to which you felt the following emotions (if any) while participating in the choose-your- own-adventure game. The listed emotions are: sympathy, empathy, concern, compassion, fear, sadness, anger, disgust, surprise, happiness, grief, worry, indifference, guilt, helplessness 1 Not at all 2 A little 3 A moderate amount 4 A lot 5 A great deal Climate change beliefs You may have heard the idea that the world’s climate is changing due to increases in temperature over the past 100 years. What is your opinion on this? Do you think the world’s climate is changing? 1 Definitely not changing 2 Probably not changing 3 Might or might not be changing 4 Probably changing 5 Definitely changing If you think climate change is happening, do you think it is caused by natural processes, human activity, or both? 1 I don’t think climate change is happening. 2 Almost entirely by natural processes. 3 About equally by natural processes and human activity. 4 Almost entirely by human activity. How much do you think climate change will harm future generations of people? Reverse coded to mean: 1 Not at all 2 A little 3 A moderate amount 4 A lot 5 A great deal How much do you think climate change will harm you personally? Reverse coded to mean: 1 Not at all 2 A little 3 A moderate amount 4 A lot 5 A great deal Pro-environmental policy support

To what extent are you in favour or against the following policies in the UK to reduce climate change? Increasing taxes on fossil fuels, such as oil, gas and coal 1 Strongly against 2 Somewhat against 3 Neither against nor in favour 4 Somewhat in favour 5 Strongly in favour 6 Don’t know Using public money to subsidise renewable energy such as wind and solar power 1 Strongly against 2 Somewhat against 3 Neither against nor in favour 4 Somewhat in favour 5 Strongly in favour 6 Don’t know A law banning the sale of the least energy efficient house- hold appliances 1 Strongly against 2 Somewhat against 3 Neither against nor in favour 4 Somewhat in favour 5 Strongly in favour 6 Don’t know Pro-environmental behaviours Would you like to sign the ‘StopGlobalWarming’ online petition? StopGlobalWarming is a movement about cre- ating change, as individuals, as a country, and as a global community. Join the 1,140,032 supporters of the Stop Global Warming Virtual March, and become part of the movement to demand our leaders freeze and reduce carbon dioxide emissions now. We are all contributors to climate change and we all need to be part of the solution. Reverse coded to mean: 1 Don’t sign the petition. 2 Sign the petition. (Continued)