What will I learn about: the surprising geographical differences between the North and South Poles, including why Antarctic ice is over 10,000 feet deep while Arctic ice is merely a thin, fast-moving frozen ocean?

Discover the surprising geographical differences between the North and South Poles, including why Antarctic ice is over 10,000 feet deep while Arctic ice is merely a thin, fast-moving frozen ocean.

What will I learn about: how the unique reflective properties of polar ice act as Earth's natural cooling system, and why melting ice dangerously accelerates global warming by reflecting less solar energy away?

Understand how the unique reflective properties of polar ice act as Earth's natural cooling system, and why melting ice dangerously accelerates global warming by reflecting less solar energy away.

What will I learn about: Learn how a delicate one percent of natural greenhouse gases keeps our planet habitable, and how human-driven fossil fuel emissions are aggressively disrupting this vital balance?

Learn how a delicate one percent of natural greenhouse gases keeps our planet habitable, and how human-driven fossil fuel emissions are aggressively disrupting this vital balance.

What will I learn about: Explore how past ice ages functioned as massive landscape artists, wielding enough power to crush rocks, carve the Norwegian Fjords, and create thousands of Scandinavian lakes?

Explore how past ice ages functioned as massive landscape artists, wielding enough power to crush rocks, carve the Norwegian Fjords, and create thousands of Scandinavian lakes.

What will I learn about: how scientists accurately reconstruct Earth's climate history by analyzing the chemical concentration in ancient sea shells and the thickness of historic tree rings?

Find out how scientists accurately reconstruct Earth's climate history by analyzing the chemical concentration in ancient sea shells and the thickness of historic tree rings.

A World Without Ice

What happens if climate change takes its course

Henry Pollack

★ 4.2 / 5(31 ratings)

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Categories:

Nature & the Environment

If You're Curious About These Questions...

You should listen to this audiobook

💡Did you know that ice is far more than just frozen water—it’s actually the silent engine that regulates our entire planet’s temperature?
💡Have you ever wondered what the map of the world would look like—and how our daily lives would shift—if the Earth’s ice disappeared entirely?
💡Are you curious about the critical steps we must take right now to navigate a warming climate and ensure a sustainable future for the next generation?

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Key Takeaways from A World Without Ice

✓Discover the surprising geographical differences between the North and South Poles, including why Antarctic ice is over 10,000 feet deep while Arctic ice is merely a thin, fast-moving frozen ocean.
✓Understand how the unique reflective properties of polar ice act as Earth's natural cooling system, and why melting ice dangerously accelerates global warming by reflecting less solar energy away.
✓Learn how a delicate one percent of natural greenhouse gases keeps our planet habitable, and how human-driven fossil fuel emissions are aggressively disrupting this vital balance.
✓Explore how past ice ages functioned as massive landscape artists, wielding enough power to crush rocks, carve the Norwegian Fjords, and create thousands of Scandinavian lakes.
✓Find out how scientists accurately reconstruct Earth's climate history by analyzing the chemical concentration in ancient sea shells and the thickness of historic tree rings.

Learning Tools

Reinforce what you learned from A World Without Ice

Mind Map

A World Without Ice

The Poles & Ice Properties+

Earth's Climate History+

Drivers of Climate Change+

Consequences of Melting Ice+

Mitigation and Management+

Quiz — Test Your Understanding

Question 1 of 7

What is a primary physical difference between the ice at the North Pole and the South Pole?

A. The North Pole is covered by over 10,000 feet of ice, while the South Pole features a thin sheet of frozen ocean water.
B. The North Pole consists of a relatively thin sheet of ice floating on the ocean, whereas the South Pole is covered by a massive, deep layer of ice over a landmass.
C. The ice at the South Pole shifts at a much faster daily rate than the ice at the North Pole.
D. The North Pole's ice expands when it freezes, but the South Pole's ice contracts due to extreme atmospheric pressure.

Question 2 of 7

How does ice play a crucial role in naturally regulating Earth's climate?

A. It absorbs excess carbon dioxide from the atmosphere, reducing the greenhouse effect.
B. It expands when it melts, naturally cooling the surrounding ocean currents.
C. It reflects a significant amount of warming sunlight away from the planet's surface.
D. It traps methane gases underneath the polar ice caps, preventing them from entering the atmosphere.

Question 3 of 7

According to the text, what would happen to Earth if the natural greenhouse effect did not exist?

A. It would become an uninhabitable 'snowball' approximately 60°F colder than it is today.
B. The planet's average temperature would increase rapidly due to unshielded solar radiation.
C. The oceans would evaporate completely, leaving behind a barren, desert-like landscape.
D. The polar ice caps would melt at a highly accelerated rate, flooding all coastal regions.

Question 4 of 7

How do scientists use the chemistry of ancient sea shells to learn about past ice ages?

A. The shells contain trapped air bubbles that reveal historical carbon dioxide and methane levels.
B. The shells show physical scratches and abrasions caused by shifting glaciers on the ocean floor.
C. The chemical composition of the shells reflects the higher concentration of chemicals in ocean water that occurs when sea levels drop during ice ages.
D. The shells fossilize and turn a specific color only during periods of extreme global cooling, acting as a natural thermometer.

Question 5 of 7

What is one of the most immediate threats posed to humans by the loss of mountain glacial ice?

A. The sudden release of ancient, dormant diseases trapped within the glacial ice.
B. Severe water shortages for municipalities and agriculture that rely on seasonal meltwater.
C. A dramatic decrease in global ocean temperatures, which will disrupt coastal marine ecosystems.
D. Increased volcanic activity and earthquakes due to the reduced weight of ice on mountain ranges.

Question 6 of 7

Besides melting glacial water returning to the ocean, what else directly contributes to rising sea levels in a warmer world?

A. Increased rainfall and severe storms occurring over the open oceans.
B. The physical expansion of ocean water as its temperature rises.
C. The sinking of continental landmasses due to shifting tectonic plates.
D. Increased underwater volcanic eruptions that displace large volumes of ocean water.

Question 7 of 7

Why does the author argue that some degree of climate change is ultimately unavoidable?

A. Because natural climate fluctuations are currently overpowering any human mitigation efforts.
B. Because the global population is growing too fast to successfully implement renewable energy sources.
C. Because previously emitted greenhouse gases, like carbon dioxide, will linger in the atmosphere and continue to warm the planet for over a century.
D. Because current mitigation technologies, like geothermal and solar, produce their own hidden greenhouse gases.

A World Without Ice — Full Chapter Overview

1Recommendation
21 — Not exactly twins: the Arctic and Antarctic are quite different.
32 — Two key forces shape our planet’s climate: ice and the greenhouse effect.
43 — Earth’s many ice ages have shaped our seas and landscapes.
54 — Scientific methods help us reconstruct past climate changes and confirm today’s global warming.
65 — Human activity has been driving climate change for centuries.
76 — Climate change has real impacts on human life today.
87 — Climate change is unavoidable, but we can learn to manage it.
98 — Final summary

A World Without Ice Summary & Overview

A World Without Ice (2009) is about our planet, its climate, its human residents – and ice. Ice has always been a major player in Earth’s climate. These blinks explain why we may soon see a world without ice, why that would have dramatic consequences for Earth and humans alike, and how we can cope with climate change.

Who Should Listen to A World Without Ice?

Anyone hoping for a sustainable future on Earth
Anyone interested in polar ice, icebergs, glacial ice and snow
Anyone interested in geology or politics

About the Author: Henry Pollack

Henry Pollack is a professor of geophysics at the University of Michigan. Together with his colleagues on the International Panel on Climate Change and former vice president Al Gore, he won the 2007 Nobel Peace Prize. Pollack travels regularly to Antarctica and has conducted scientific research on all seven continents. He also the author of Uncertain Science. . . Uncertain World.

A World Without Ice

If You're Curious About These Questions...

Listen to A World Without Ice — Free Audiobook

Key Takeaways from A World Without Ice

Learning Tools

Mind Map

Quiz — Test Your Understanding

A World Without Ice — Full Chapter Overview

A World Without Ice Summary & Overview

Who Should Listen to A World Without Ice?

About the Author: Henry Pollack

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