Climate change, which includes global warming, is a serious and pervasive challenge for local and global communities. Communication theorists, researchers, and practitioners are well positioned to describe, predict, and affect how we communicate about climate change. Our theories, research methods, and practices have many potential roles in reducing climate change and its effects. Climate change communication is a growing field that examines a range of factors that affect and are affected by how we communicate about climate change. Climate change communication covers a broad range of philosophical and research traditions, including humanistic-rhetorical analyses, interpretive qualitative studies, and social-scientific quantitative surveys and experiments. Climate change communication examines a range of factors that affect and are affected by how we communicate about climate change. Much of the research in climate change communication focuses on public understanding of climate change, factors that affect public understanding, media coverage and framing, media effects, and risk perceptions. Less prevalent, growing areas of research include civic engagement and public participation, organizational communication, and persuasive strategies to affect attitudes, beliefs, and behaviors related to the climate. In all of these areas, most of the research on climate change communication has been conducted in the United States, United Kingdom, Australia, Canada, and Western European countries. There is a need to expand the climate change communication research into other regions, particularly developing countries. In addition, climate change communication has natural links to environmental and health communication; therefore, communication scholars should also examine research from these areas to develop insights into climate change communication.