TED-ED: Why the Arctic is climate change's canary in the coal mine - William Chapman

The Arctic is a sensitive climate system, acting as an early indicator of climate change. It experiences feedback loops, such as reflectivity and insulation, which can amplify warming or cooling. Positive feedback loops destabilize the climate, while negative ones promote stability. Changes in the Arctic can affect global weather patterns, leading to extreme conditions. The Arctic's role as a climate change indicator highlights its global significance.

What happens when the Arctic's snow and ice melt?

• The Arctic's temperature remains unchanged.

• The Arctic becomes more stable and less sensitive to climate change.

• The ground and ocean reflect more sunlight, leading to cooling.

• The ground and ocean absorb more heat, leading to further warming.

How does sea ice act as a buffer in the Arctic?

• By absorbing heat from the sun.

• By reflecting sunlight back into space.

• By increasing the amount of snow and ice.

• By separating cold air from warmer ocean water.

What is a positive feedback loop in the context of climate change?

• A process that has no impact on the climate.

• A process that reverses the effects of climate change.

• A process that amplifies initial changes in the same direction.

• A process that stabilizes the climate by reducing changes.

Why is the Arctic warming faster than the equator?

• Because of increased cloud cover in the Arctic.

• Due to positive feedback loops that amplify warming.

• Because the equator receives less sunlight.

• Due to the melting of glaciers at the equator.

What potential global impact could result from Arctic feedback loops?

• More stable and predictable weather patterns.

• A decrease in global temperatures.

• Longer-lasting and more extreme weather events.

• A reduction in sea levels worldwide.