Cities in the United States engage in action on climate change, even as the federal government remains resistant to comprehensive climate policy. While experts generally agree that local level adaptation and mitigation policies are critical to avoiding the worst climate impacts, the degree to which cities communicate climate change issues to their constituents has yet to be fully explored. In this article, we evaluate how U.S. cities communicate climate change related issues, problems, and

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... ies. We use a computerassisted approach to evaluate climate change efforts by cities by examining the full text of press releases of 82 large cities in the United States. We first identify who discusses climate change, finding that many large cities in the United States address climate change in their public communication. Second, we examine the content of these discussions. Many cities discuss weather-related concerns in conjunction with broad collaborative efforts to address global warming, while city-based policy discussions focus more on energy and transportation efforts. Third, we evaluate the local factors associated with these discussions. We find that the city's climate vulnerability is particularly influential in shaping the level and timing of climatic communication.