The American Meteorological Society (AMS) is one of the premier international scientific societies covering the atmospheric and related sciences and has been for over 100 years. Throughout its history, the AMS has organized scientific meetings and conferences that have supported the discussion and debate of topics in climate science (as well as other topics in the atmospheric and related sciences) and has used its publications to disseminate the scientific results of those working in climate science. AMS publications have been especially important in providing information to the entire scientific community on major global research programs. Since 1995, AMS has collaborated with the National Oceanic and Atmospheric Administration to publish an annual “State of the Climate” report that chronicles Earth’s changing climate, and since 2011, the AMS has published an annual series that assesses extreme events from a climate perspective. The position of the AMS on scientific and policy issues is provided by periodic statements issued by the AMS, and many AMS statements have addressed issues related to climate, including the human influence on climate change. While the official AMS position on climate change has been consistent with the scientific consensus, the AMS has provided a platform for challenges to the consensus, as long as those challenges meet an adequate threshold of scientific rigor, which fosters debate that advances the science further. The AMS also works to reduce the politicization of climate science and has consistently maintained a strong position on the integrity of science. Throughout, the AMS has served as a trusted resource for policymakers and the public on climate science and aspects of global change.