Overview and key changes observed in the Arctic case study!❄️πŸ”₯βœ¨β˜ƒοΈ Flashcards

1
Q

What are the consequences of rapid changes in the Arctic region due to global warming?

A

The Arctic region is experiencing some of the most rapid and dramatic changes due to global warming, with significant consequences for local ecosystems, human communities, and global climate systems.

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2
Q

List the names of the key changes observed in the Arctic region during climate change.

A

*Temperature Rise
*Sea ice decline
*Permafrost thawing
*Glacial retreat
*Changes in ecosystems

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3
Q

Describe how the Arctic’s temperature is rising.

A

The Arctic is warming at more than twice the rate of the global average, a phenomenon known as Arctic amplification. Since the late 20th century, temperatures in the Arctic have increased by 2-3Β°.

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4
Q

How has the sea ice been affected by climate change in the Arctic region?

A

The extent and thickness of sea ice have diminished substantially. Summer sea ice extent has decreased by about 40% since satellite measurements began in 1979. This trend threatens the habitat of species such as polar bears, seals, and walruses.

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5
Q

What is Permafrost thawing and how does it contribute to global warming?

A

Permafrost, the frozen ground that underlies much of the Arctic, is thawing. This process releases stored carbon dioxide and methane into the atmosphere, contributing to further global warming.

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6
Q

What is happening to Arctic glaciers and ice caps?

A

Arctic glaciers and ice caps are retreating rapidly, contributing to global sea level rise. For example, Greenland’s ice sheet is losing mass at an accelerating rate.

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7
Q

How does global warming affect ecosystems?

A

Warming temperatures and altered ice conditions are impacting Arctic ecosystems. Species adapted to cold environments face habitat loss, while new species are migrating into the region, disrupting existing ecological balances.

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