Climatologists are experts in the study of climate patterns and variability over long periods of time. They work to understand the effects of climate change on the environment and ecosystems. Synonyms for climatologists include climate scientists, atmospheric scientists, meteorologists, environmental scientists, and climate data analysts. These experts investigate the causes and consequences of climate change, collect and analyze data, and develop models to predict future climate patterns. They play a critical role in informing policymakers, businesses, and the public about the impacts of climate change, and in developing strategies to mitigate those impacts. Regardless of their title, these professionals are devoted to understanding the earth's changing climate.