Final answer:
To get people on board with a collective campaign, emphasize taking ownership and individual responsibility. Provide examples and highlight the positive outcomes of taking action.
Step-by-step explanation:
In order to get people of all personality types on board with a collective campaign to fight a credible future threat, it is important to emphasize the idea of taking ownership. One approach is to highlight the individual's responsibility for their own actions and the impact those actions have on the collective problem. This can be done by providing concrete examples of how certain habits or behaviors contribute to the problem, and encouraging individuals to reflect on their own actions. Additionally, emphasizing the benefits and positive outcomes of taking ownership can help motivate people to join the campaign.