Substantial numbers of respondents in every country or territory, including majorities in 19 countries and territories surveyed, say they “definitely” or “probably” would participate, or currently are participating, in a citizens’ campaign to convince leaders to take action to reduce climate change. Respondents in Mexico (79%) and Colombia (79%) are the most likely to say they are currently participating, “definitely would” participate, or “probably would” participate in a citizens’ campaign. Respondents from the Netherlands (29%) and Japan (29%) are the least likely to say they are participating or would participate in a such a campaign. In the United States, 5% of respondents say they are already participating in a citizens’ campaign urging action to reduce climate change, and an additional 38% say that they “definitely” or “probably” would do so.