NASA | Arctic Sea Ice Update, Aug. 2013

Dr. Tom Wagner discusses the current state of Arctic sea ice, highlighting significant loss and thinning trends since the 1980s. He explains the global impact of sea ice melting, including changes in weather patterns and potential methane release. NASA's research efforts, using satellites and aircraft, aim to understand these changes in the Arctic, Greenland, and Antarctica. The video also covers recent ice loss in Greenland and Antarctica, emphasizing the importance of continued study and monitoring.

What is the long-term trend observed in Arctic sea ice since the 1980s?

• The ice has been increasing in thickness.

• The ice has been shrinking and thinning.

• The ice has remained stable.

• The ice has been moving towards the equator.

How does the loss of Arctic sea ice affect global weather patterns?

• It reduces the frequency of storms.

• It can cause extreme weather patterns.

• It stabilizes the jet stream.

• It has no impact on global weather.

What is one of the main concerns related to the melting of Arctic sea ice?

• Release of methane from permafrost.

• Increased fish population.

• Formation of new land masses.

• Decrease in global temperatures.

What methods does NASA use to study changes in the Arctic?

• Satellite and aircraft research.

• Space station monitoring.

• Only ground-based observations.

• Underwater exploration.

What significant change was observed in Greenland's ice last year?

• Ice formation in the southern regions.

• Complete ice formation.

• Extensive melting across the entire surface.

• No change in ice levels.

Which part of Antarctica is experiencing significant ice loss?

• East Antarctica.

• West Antarctica.

• The central plateau.

• The coastal regions.

How does Antarctic sea ice behavior differ from that of the Arctic?

• Antarctic sea ice is thicker than Arctic ice.

• Antarctic sea ice is unaffected by climate change.

• Antarctic sea ice grows and retreats annually.

• Antarctic sea ice remains constant year-round.