Climate Change Review

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What are CFCs (Chlorofluorocarbons)?

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CFCs are man-made compounds used in refrigeration, air conditioning, and aerosol propellants that can deplete the ozone layer.

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Why are CFCs harmful to the environment?

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CFCs release chlorine atoms in the stratosphere, which can destroy ozone molecules, leading to increased UV radiation reaching the Earth's surface.

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What is the ozone layer?

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The ozone layer is a region of Earth's stratosphere that contains a high concentration of ozone (O3) and protects living organisms from harmful ultraviolet (UV) radiation.

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What happens when ozone in the stratosphere depletes?

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Depletion of ozone leads to increased UV radiation reaching the Earth's surface, which can cause skin cancer, cataracts, and harm ecosystems.

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What is the relationship between air temperature and water vapor capacity?

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Warm air can hold more water vapor than cold air, which is why humidity levels are higher in warmer conditions.

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What is the effect of volcanic eruptions on Earth's temperature?

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Volcanic eruptions can lower Earth's temperature temporarily by releasing ash and gases that block sunlight.

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What is the Kyoto Protocol?

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The Kyoto Protocol is an international agreement that commits its parties to reduce greenhouse gas emissions, based on the premise that global warming exists and human-made CO2 emissions have caused it.

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What is the role of greenhouse gases in climate change?

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Greenhouse gases trap heat in the atmosphere, leading to an increase in Earth's average temperature, a phenomenon known as the greenhouse effect.

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What are some examples of greenhouse gases?

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Common greenhouse gases include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and water vapor.

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How does deforestation contribute to climate change?

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Deforestation reduces the number of trees that can absorb CO2, increasing the concentration of greenhouse gases in the atmosphere.

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