Global Circulation Models

Global Circulation Models (GCMs) are advanced computer programs that simulate Earth's climate system, including the atmosphere, oceans, land, and ice. They use mathematical equations to represent physical processes, helping scientists understand weather patterns and long-term climate changes. By inputting data such as greenhouse gas levels and solar radiation, GCMs can predict how the climate might respond to different scenarios. These models are essential tools for informing policy decisions and preparing for future climate impacts, offering a detailed, scientific way to study the complex interactions that drive Earth’s climate.