General Circulation Model (GCM)

A General Circulation Model (GCM) is a sophisticated computer program that simulates Earth's climate system, including the atmosphere, oceans, land surface, and ice. It uses mathematical equations based on physical laws to predict how these components interact and change over time. GCMs help scientists understand climate patterns, forecast future climate conditions, and analyze impacts of factors like greenhouse gas emissions. They provide a detailed virtual representation of Earth's climate processes, aiding in informed decision-making regarding environmental policy and adaptation strategies.