Climate Change Moved the North Pole

The video discusses a study on how climate change is affecting Earth's axis and the North Pole's location. It explains polar motion, the role of GRACE satellites, and recent shifts in polar drift due to climate change. The study uses modeling to show that accelerated ice melt in the '90s contributed to these changes. Future research may use these methods to understand historical water movement.

What is the Chandler wobble?

• A seasonal movement of water vapor

• A 433-day cycle of polar motion

• A shift in Earth's magnetic field

• A type of earthquake

What significant change in the North Pole's drift was observed in the mid-'90s?

• It stopped moving altogether

• It accelerated and changed direction to eastward

• It began moving towards the equator

• It started moving westward

What role do the GRACE satellites play in studying Earth's axis shift?

• They measure changes in Earth's magnetic field

• They track the movement of tectonic plates

• They monitor volcanic activity

• They measure changes in Earth's gravity due to ice and water movement

How did researchers in the new study tackle the challenge of studying polar drift in the '90s?

• By extrapolating GRACE data back in time

• By launching new satellites

• By using historical weather data

• By conducting field studies in Greenland

What potential future application do the authors suggest for their methods?

• Forecasting weather patterns

• Mapping the ocean floor

• Reconstructing historical water movement

• Predicting future volcanic eruptions