What is the difference between a positive feedback loop and a negative feedback loop? Give a climate-related example of each.

A positive feedback loop is a self-reinforcing process that amplifies its effects, leading to a greater deviation from the original condition, while a negative feedback loop is a self-regulating process that counteracts its effects, aiming to bring the system back to its original condition. A climate-related example of a positive feedback loop is the ice-albedo feedback, where melting ice exposes land and water surfaces with lower albedo, leading to further warming and more ice melting. A climate-related example of a negative feedback loop is the relationship between global temperature and CO2 uptake by plants, where increased temperatures and CO2 levels lead to more photosynthesis and CO2 removal from the atmosphere, helping to stabilize the temperature.