Understanding Arctic Changes

What unusual phenomenon have scientists observed off the southeast coast of Greenland?

• Unusual whale and fish congregations

• Decreased salinity in the water

• Increased volcanic activity

• Rising sea levels

What makes studying the Arctic particularly challenging?

• Limited technological advancements

• Floating sea ice and harsh conditions

• Political restrictions

• Lack of scientific interest

How does sea ice help regulate Earth's climate?

• By increasing ocean salinity

• By reflecting solar radiation

• By trapping greenhouse gases

• By absorbing solar radiation

What is a halocline and why is it important?

• A type of Arctic fish

• A layer of ice that forms on land

• A layer of water with different salinity levels

• A type of cloud formation

What has been the impact of disappearing sea ice on marine life in Greenland?

• Decrease in fish populations

• Increased biodiversity

• Migration of new species and displacement of Arctic species

• Stabilization of marine ecosystems

Which species have been observed moving into Southeast Greenland waters?

• Penguins

• Polar bears

• Arctic foxes

• Temperate whales like humpbacks

What are the two dominant circulation systems in the Arctic?

• North Atlantic Drift and Canary Current

• Transpolar Drift Stream and Beaufort Gyre

• Kuroshio Current and California Current

• Gulf Stream and Labrador Current

What could be a potential consequence of a completely ice-free Arctic in summer?

• Increased turbulence and mixing of ocean layers

• Decrease in global sea levels

• Stabilization of weather patterns

• Increased global cooling

How might Arctic changes affect global weather patterns?

• By decreasing global temperatures

• By causing more stable weather systems

• By strengthening the jet stream

• By making extreme weather events more likely

What is the significance of understanding Arctic changes?

• They have no impact on global systems

• They only affect local Arctic communities

• They have far-reaching impacts on global climate and weather

• They are irrelevant to climate science