3. Sea Ice as Climate Regulator
Arctic sea ice plays a crucial role in regulating Earth’s climate by reflecting sunlight and insulating the ocean. Its high albedo allows it to reflect 50 to 70 percent of incoming solar energy, keeping the Arctic cooler. In contrast, the surrounding ocean absorbs about 90 percent of sunlight, leading to warming. This stark difference influences global weather patterns and contributes to Arctic amplification, where the region warms at a faster rate than the rest of the planet. (nsidc.org)