Climatologists are scientists who study the Earth's climate and how it changes over time. They analyze data from various sources, such as weather patterns, temperature records, and ice cores, to understand past climates and predict future changes. Their work helps us understand the impact of human activities, like burning fossil fuels, on the environment. These experts play a crucial role in addressing climate change by providing valuable insights to policymakers and the public. By studying phenomena like global warming and extreme weather events, climatologists help us prepare for and adapt to the challenges posed by a changing climate.