Assess students' ability to identify, classify, and analyze positive and negative feedback mechanisms in Earth's climate system. Include key examples (ice-albedo, water-vapor, cloud, carbon-cycle, permafrost, vegetation) and require explanation of physical processes, characteristic timescales, and how feedback strength alters climate sensitivity. Ask students to interpret simple feedback-loop diagrams or numerical feedback coefficients, determine the net feedback, and evaluate implications for future warming using provided data or scenarios.