Climate change is likely to have a dramatic impact on many animals, including American lobsters (Homarus americanus). Lobsters are very sensitive to water temperature, and they will move to avoid water that is too warm or too cold. While this behavior has served them well for 1,000’s of years, as the oceans warm up, they might seek new habitats, which might disrupt aspects of their life cycle and lead to a decline in their numbers. In this article, we aim to explain some facts about American lobsters and tell you about several ways that climate change might have an impact on these fascinating and valuable creatures.