Climate Change and Greenhouse Gases Worksheet

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What is climate change?

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Climate change refers to significant and lasting changes in the Earth's climate, particularly an increase in temperature due to human activities such as burning fossil fuels.

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What are greenhouse gases?

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Greenhouse gases are gases that trap heat in the atmosphere, contributing to the greenhouse effect. Major greenhouse gases include carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).

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How do greenhouse gases contribute to global warming?

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Greenhouse gases absorb and emit infrared radiation, leading to an increase in Earth's average temperature, which is known as global warming.

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What is the greenhouse effect?

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The greenhouse effect is the process by which certain gases in the Earth's atmosphere trap heat, preventing it from escaping into space and thus warming the planet.

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What is the main source of carbon dioxide emissions?

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The main source of carbon dioxide emissions is the burning of fossil fuels for energy, such as coal, oil, and natural gas.

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What are the consequences of rising sea levels?

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Rising sea levels can lead to coastal flooding, loss of habitat for plants and animals, and increased erosion.

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What is a positive feedback loop in the context of climate change?

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A positive feedback loop amplifies changes; for example, melting ice reduces the Earth's albedo, leading to more heat absorption and further ice melt.

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What role do forests play in climate regulation?

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Forests act as carbon sinks, absorbing CO2 from the atmosphere and helping to mitigate climate change.

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What is the impact of deforestation on climate change?

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Deforestation increases CO2 levels in the atmosphere, as trees that absorb CO2 are removed, contributing to global warming.

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What is the significance of polar ice caps?

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Polar ice caps reflect sunlight, helping to regulate the Earth's temperature; their melting contributes to rising sea levels.