NASA | Arctic Sea Ice Reaches 2014 Minimum Extent

The video discusses the decline of Arctic sea ice, which reached its sixth lowest extent in 2014. Arctic sea ice acts as a natural air conditioner by reflecting sunlight, thus cooling the planet. Since 1979, satellite monitoring has shown a significant loss of sea ice, equivalent to about a third of the United States. The Arctic has warmed two to three times faster than the global average, contributing to the decrease in sea ice thickness and extent. Thinner ice melts more quickly, making it less resilient. The loss of Arctic sea ice is a significant indicator of climate change, impacting global climate systems.

What was the extent of Arctic sea ice on September 17th, 2014?

• 1.5 million square miles

• 3 million square miles

• 2.5 million square miles

• 1.94 million square miles

Since when have we been monitoring the extent of Arctic sea ice with satellites?

• 1969

• 1999

• 1979

• 1989

How much faster have Arctic temperatures risen compared to the global average?

• Four times the global average

• Half the global average

• Two to three times the global average

• Same as the global average

What is the impact of thinner Arctic sea ice?

• It melts faster and doesn't last as long

• It becomes more resilient

• It melts slower

• It remains unchanged

Why is Arctic sea ice considered a significant symbol?

• It is a symbol of a changing planet

• It has no impact on climate

• It is a symbol of economic growth

• It is unrelated to global warming