Amplify - Earth's Changing Climate Chapter 2 Critical Juncture

Front

What is the greenhouse effect?

Back

The greenhouse effect is the process by which certain gases in Earth's atmosphere trap heat, preventing it from escaping into space, which helps to keep the planet warm.

Front

What role does carbon dioxide play in Earth's climate?

Back

Carbon dioxide is a greenhouse gas that traps heat in the atmosphere. An increase in carbon dioxide levels can lead to more energy being retained in the Earth system.

Front

How does an increase in methane affect energy in the Earth system?

Back

An increase in methane, another greenhouse gas, leads to more energy being absorbed by Earth's surface, contributing to warming.

Front

What is the significance of ice core data in climate studies?

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Ice core data provides historical records of Earth's atmosphere, allowing scientists to study past climate conditions and changes in greenhouse gas concentrations.

Front

What happens to energy in the Earth system when carbon dioxide levels decrease?

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When carbon dioxide levels decrease, less energy is trapped in the atmosphere, leading to less energy in the Earth system and potentially cooler temperatures.

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What is the relationship between energy entering and exiting the Earth system?

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The balance between energy entering (from the sun) and exiting (back to space) determines the overall energy in the Earth system, affecting climate and temperature.

Front

How can fossil evidence inform us about past climate conditions?

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Fossil evidence can indicate the types of organisms that existed and the climate conditions they thrived in, helping scientists understand historical climate changes.

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What is the impact of increased greenhouse gases on Earth's surface temperature?

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Increased greenhouse gases lead to higher surface temperatures as they trap more heat in the atmosphere.

Front

What does it mean for energy to be redirected back toward Earth?

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When energy is redirected back toward Earth, it means that less energy escapes into space, contributing to warming of the planet.

Front

How do scientists measure energy entering and exiting the Earth system?

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Scientists use various tools and instruments to measure solar radiation, heat emissions, and greenhouse gas concentrations to assess energy balance.