**Study 3 Procedure** The materials presented here are shown in the order they are shown in the study. **Study 3 Materials (For a demonstration, click this [link][1])** The materials presented here are shown in the order they are shown in the study. *Single-Target Implicit Association Test (ST-IAT)*: We adapted Bluemke and Friese's (2007) ST-IAT procedure for the current study. Participants in the first practice block (20 trials) sorted words belonging to one of two categories (Self and Other) by pressing either "E" (for Other) or "I" for (for Self). In the second and third critical blocks (48 trials each), participants sorted words belonging to one of three categories (Self, Other, and Environmentalist) by pressing either "E" (for Other) or "I" for (for Self or Environmentalist). In the fourth and fifth critical blocks (48 trials each), participants did the same except Environmentalist words are also categorized with Other-related words instead of Self-related words. Each critical block had 20 trials for the attribute that Environmentalist is not paired with, 14 trials for Environmentalist, and 14 trials for the attribute that Environmentalist is paired with. There was no response deadline, no feedback for correct responses, and participants were required to correct incorrect responses. Participants were randomly assigned to take the ST-IAT in the order above or in a flipped order where Other/Environmentalist vs. Self are Blocks 2 and 3 and Other vs. Self/Environmentalist are Blocks 4 and 5. The ST-IAT will be scored with the IAT D2 algorithm (Greenwald et al., 2003). The ST-IAT stimuli for each category are: Environmentalist: Environmentalist, Conservationist, Preservationist, Tree-Hugger Self: Mine, Myself, Self, I, My Other: They, Their, Them, Theirs, Other *Environmentalist identification*, 1 (Disagree strongly) to 7 (Agree strongly). Adapted from Smith et al. (2007). 1. I see myself as an environmentalist. 2. I am pleased to be an environmentalist 3. I feel strong ties with environmentalists 4. I identity with other environmentalists. *Policy opinion.* 1 (Disagree strongly) to 7 (Agree strongly). 1. The United States should create more laws to reduce global warming, even if those laws cost American jobs. 2. The United States should create a carbon pollution tax in order to reduce global warming, even if the tax reduces the ability of American businesses to compete globally. 3. The United States should support international efforts to reduce global warming, even if other countries like China don't participate. *Novel policy opinion.* Please consider this issue and give your opinion. ![Article][2] Plain-text version: A proposed commercial development in California came under fire this week due to environmental concerns. The East Rock site is located in remote southeastern California far away from the nearest city. The East Rock development was proposed by a consortium of American businesses including an unnamed major car maker widely thought to be either General Motors or Ford. The proposed site would lead to 1.2 million square feet of manufacturing and office space and was located at East Rock because of inexpensive land. However, irregularities were revealed last month in the developer's environmental review to the state of California. Non-profit environmental advocacy groups such as the Sierra Club are focusing on this report. "The mistakes in this report suggest a pattern of intentional deception. The damage to the local ecosystem and threatened bird species is much greater than was expected before, and this compromises the environmental safety of the entire project. We urge this project to stop construction for the next three weeks to allow an independent body to conduct a high-quality environmental review. We recognize this would incur as much as $150,000 in additional costs, but the environmental problems are too large to ignore." In response, a spokesperson for the developer stated: "We apologize for the minor errors in the state report. There were minor accidents and we have already submitted a revised version. The big picture has not changed: this development complies with state and federal law, protects the environment adequately, and will provide thousands of new jobs at a time the local economy desperately needs a boost." 1. "How much do you support stopping construction for the next three weeks for the independent environmental review?" 2. "How much do you support allowing construction on the East Rock business development to continue without further review?" 1 (Not at all) to 7 (Extremely). *Environmental behaviors*. Recurring Environmental Behavior Scale (in prep, soon to be under review, Brick et al.) "Now, please respond to these questions about your behavior. Don't feel any pressure, just indicate what you choose to do." Items are rated 1 (Never), 2 (Rarely), 3 (Sometimes), 4 (Often) or 5 (Always). 1. When you visit the grocery store, how often do you use reusable bags? 2. How often do you walk, bicycle, carpool, or take public transportation instead of driving a vehicle by yourself? 3. How often do you drive slower than 60mph on the highway? 4. How often do you go on personal (non-business) air travel? 5. How often do you compost your household food garbage? 6. How often do you eat meat? 7. How often do you eat dairy products such as milk, cheese, eggs, or yogurt? 8. How often do you eat organic food? 9. How often do you eat local food (produced within 100 miles)? 10. How often do you eat from a home vegetable garden (during the growing season)? 11. How often do you turn your personal electronics off or in low-power mode when not in use? 12. When you buy light bulbs, how often do you buy high efficiency compact fluorescent (CFL) or LED bulbs? 13. How often do you act to conserve water, when showering, cleaning clothes, dishes, watering plants, or other uses? 14. How often do you use aerosol products? 15. When you are in PUBLIC, how often do you sort trash into the recycling? 16. When you are in PRIVATE, how often do you sort trash into the recycling? 17. How often do you discuss environmental topics, either in person or with online posts (Facebook, Twitter, etc.)? 18. When you buy clothing, how often is it from environmentally friendly brands? 19. How often do you carry a reusable water bottle? 20. How often do you engage in political action or activism related to protecting the environment? 21. How often do you educate yourself about the environment? *Implicit / Explicit Motivation for Environmental Behavior* (adapted from Plant & Devine, 1998). Items will be presented mixed. External motivation 1. Because of today's politically correct standards, I try to appear pro-environmental. 2. I try to hide my negative thoughts about environmental behavior in order to avoid negative reactions from others. 3. If I acted anti-environmental, I would be concerned that others would be angry with me. 4. I attempt to appear pro-environmental in order to avoid disapproval from others. 5. I try to act pro-environmental because of pressure from others. Internal motivation 1. I attempt to behave pro-environmentally because it is personally important to me. 2. According to my personal values, acting non-environmental is OK. [reversed] 3. I am personally motivated by my beliefs to be pro-environmental. 4. Because of my personal values, I believe that acting anti-environmental is wrong. 5. Being pro-environmental is important to my self-concept. *Awe (trait)*. 1 (Strongly disagree) to 7 (Strongly agree) 1. I often feel awe. 1. I see beauty all around me. 1. I feel wonder almost every day. 1. I often look for patterns in the objects around me. 1. I have many opportunities to see the beauty of nature. 1. I seek out experiences that challenge my understanding of the world *Perceived social status of environmentalists* (adapted from MacArthur) Think of this ladder as representing where people stand in their communities. People define community in different ways; please define it in whatever way is most meaningful to you. At the top of the ladder (10), are the people who have the highest standing in their community. At the bottom (1) are the people who have the lowest standing in their community. ![Status ladder][3] Where would you place environmentalists on this ladder? Please enter the number below for where you think environmentalists stand at this time, relative to the other people in your community. *County of residence.*" Which of the following descriptions best describe your county of primary residence?" 1. County in metropolitan area of 1 million population or more 2. County in metropolitan area of 250,000 to 1 million population 3. County in metropolitan area of fewer than 250,000 population 4. Urban population of 20,000 or more, adjacent to a metro area 5. Urban population of 20,000 or more, not adjacent to a metro area 6. Urban population of 2,500-19,999, adjacent to a metro area 7. Urban population of 2,500-19.999, not adjacent to a metro area 8. Completely rural or less than 2,500 urban population, adjacent to a metro area 9. Completely rural or less than 2,500 urban population, not adjacent to a metro area Demographics & political orientation are included with Project Implicit. [1]: https://app-prod-03.implicit.harvard.edu/implicit/Launch?study=/user/calvin/sustain2/sustain3.expt.xml&refresh=true [2]: https://app-prod-03.implicit.harvard.edu/implicit/user/calvin/sustain3/images/article.png [3]: https://app-prod-03.implicit.harvard.edu/implicit/user/calvin/sustain3/images/ladder.png