Arctic warming began sooner than thought, closer to human industrialisation

Arctic warming began sooner than thought, closer to human industrialisation

Assessment

Interactive Video

Science, Geography, Biology, Physics

11th Grade - University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video discusses the warming of oceans over decades, with a focus on a study that used marine debris to reconstruct 800 years of data. It highlights the stability of Arctic waters until the early 1900s, when heat and salt from the Atlantic began to rise, possibly due to human-induced carbon dioxide emissions. The study suggests changes in Atlantic Meridional Overturning Circulation currents may have contributed. A feedback loop is described, where melting ice leads to further warming as the dark ocean absorbs more heat.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What method was used to reconstruct 800 years of ocean data?

Ice core samples

Marine debris

Satellite imagery

Tree rings

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What significant change began in the Arctic in the early 1900s?

Decrease in marine life

Rise in sea levels

Increase in heat and salt from the Atlantic

Decrease in salinity

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the study suggest about the Arctic's sensitivity to greenhouse gases?

It is not affected by greenhouse gases

It is equally sensitive as other regions

It is more sensitive than previously thought

It is less sensitive than previously thought

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one possible cause of early Atlantification mentioned in the study?

Volcanic eruptions

Changes in the Atlantic Meridional Overturning Circulation

Increased solar activity

Decreased ocean salinity

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when the Arctic ice melts, according to the feedback loop described?

The ocean absorbs more heat

The ocean becomes less salty

The ocean reflects more sunlight

The ocean currents slow down

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