The average temperature in Alaska and the North American Arctic has risen at twice the rate of the global average due to climate change, causing changes to the natural environment that affect the physical, social, and emotional well‐being of people and communities. Social workers must be prepared to respond. Using a non‐probability, convenience sample, this study surveyed 159 social workers in Alaska to assess their attitudes and their perceptions of the effects of climate change on their clients and constituents. Results indicate that social workers in Alaska believe that climate change is happening, that human activities are responsible, and that it is a large threat to people in Alaska. Over 75% believe that climate change is dangerous for their clients now or will be dangerous in 10 years. Social workers report that in the past year their clients or constituents have experienced multiple climate change‐related problems with community infrastructure, health, and mental health.