The Arctic amplification debate focuses on whether warming in the Arctic is more pronounced than in other regions due to factors like sea ice loss. While greenhouse gas increases are expected to cause amplified warming in the Arctic, recent observations show less clear evidence of this effect. This discrepancy may be due to differences in model projections and natural variability in observed temperatures. However, comparing recent observations (2010–2029) with near-future simulations shows a preconditioning phase of Arctic amplification, marked by sea ice retreat and thinning. Observations confirm these features, but Arctic Ocean temperatures are still influenced by ice cover and ocean thermal inertia. Models suggest we are approaching a threshold where summer solar radiation absorption limits ice growth, leading to feedbacks that increase Arctic Ocean temperatures. Since the mid-1800s, global temperatures have risen about 0.7°C, with Arctic warming being more pronounced due to feedbacks involving sea ice and snow. Recent decades have seen significant Arctic changes, including declining sea ice extent and thickness, warming soils, increased precipitation, and shifts in vegetation. Paleoclimate data indicate the late 20th century was the warmest in the past 400 years. The debate over Arctic amplification centers on differing model projections and the role of low-frequency variability. Models agree on amplified warming in the Arctic Ocean during autumn and winter, but differ in details. Natural variability, such as the Northern Annular Mode and Pacific Decadal Oscillation, also plays a role. The Arctic is approaching a threshold where summer solar absorption limits ice growth, leading to increased warming.The Arctic amplification debate focuses on whether warming in the Arctic is more pronounced than in other regions due to factors like sea ice loss. While greenhouse gas increases are expected to cause amplified warming in the Arctic, recent observations show less clear evidence of this effect. This discrepancy may be due to differences in model projections and natural variability in observed temperatures. However, comparing recent observations (2010–2029) with near-future simulations shows a preconditioning phase of Arctic amplification, marked by sea ice retreat and thinning. Observations confirm these features, but Arctic Ocean temperatures are still influenced by ice cover and ocean thermal inertia. Models suggest we are approaching a threshold where summer solar radiation absorption limits ice growth, leading to feedbacks that increase Arctic Ocean temperatures. Since the mid-1800s, global temperatures have risen about 0.7°C, with Arctic warming being more pronounced due to feedbacks involving sea ice and snow. Recent decades have seen significant Arctic changes, including declining sea ice extent and thickness, warming soils, increased precipitation, and shifts in vegetation. Paleoclimate data indicate the late 20th century was the warmest in the past 400 years. The debate over Arctic amplification centers on differing model projections and the role of low-frequency variability. Models agree on amplified warming in the Arctic Ocean during autumn and winter, but differ in details. Natural variability, such as the Northern Annular Mode and Pacific Decadal Oscillation, also plays a role. The Arctic is approaching a threshold where summer solar absorption limits ice growth, leading to increased warming.