Monitoring Greenland's Changing Climate: A Study of Glaciers and Rising Sea Levels

The video explores the Arctic Circle's glaciers as indicators of climate change, highlighting the rise in sea levels over the past century and NASA's research efforts using advanced technology like GPS and radar. It discusses field research methods, the impact of pollutants on climate, and the potential future implications of glacial changes on Earth.

What role do glaciers play in understanding global climate?

• They are used for recreational activities.

• They are a source of fresh water.

• They provide a habitat for polar bears.

• They serve as a barometer of world climate.

What technology does NASA use to align the P3 aircraft for ice surveys?

• Global Positioning System (GPS)

• Sonar technology

• Magnetic compasses

• Infrared sensors

How do researchers validate aerial measurements of the ice sheet?

• By using satellite imagery

• By comparing with historical data

• By using GPS receivers on sleds

• By consulting local inhabitants

What information can be obtained from hand coring down to 10 meters in glaciers?

• The age of the glacier

• The amount of snowfall over the past decade

• The thickness of the ice sheet

• The temperature of the ice

What potential impact do pollutants like carbon dioxide have on global temperatures?

• They could lower global temperatures by 3 to 9 degrees.

• They could raise global temperatures by 3 to 9 degrees.

• They stabilize global temperatures.

• They have no impact on global temperatures.