The Big Chill

The video discusses how some regions may warm while others cool due to the Great Ocean Conveyor Belt, a network of ocean currents that distribute heat globally. It explains how salty water sinks in the Arctic, creating a current that travels to the equator and rises as it warms. Freshwater from melting glaciers can disrupt this system, potentially leading to a shutdown with severe climate consequences. The video highlights the possibility of this occurring within the next century, affecting global weather patterns and causing droughts or severe winters in different regions.

What is the primary function of the Great Ocean Conveyor Belt?

• To increase ocean salinity

• To cool the planet

• To distribute heat around the globe

• To store atmospheric heat

What happens to salty water when it is cooled by Arctic winds?

• It evaporates

• It becomes less dense

• It sinks to the ocean floor

• It rises to the surface

How does adding freshwater affect the Great Ocean Conveyor Belt?

• It makes the water denser

• It increases the salt content

• It speeds up the currents

• It prevents the water from sinking

What is a potential consequence of the conveyor belt shutting down?

• Increased global temperatures

• Stable weather patterns

• Horrendous droughts in some regions

• Decreased ocean levels

What is the estimated probability of the conveyor belt shutting down in the next 100 years?

• 10%

• 75%

• 50%

• 25%