Global Warming

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What are greenhouse gases?

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Greenhouse gases are gases in Earth's atmosphere that trap heat. They include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and water vapor.

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How do greenhouse gases contribute to global warming?

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Greenhouse gases trap heat in the atmosphere, preventing it from escaping into space, which leads to an increase in Earth's average temperature.

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What is the natural greenhouse effect?

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The natural greenhouse effect is the process by which certain gases in the atmosphere trap heat, keeping the Earth warm enough to support life.

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Why is carbon dioxide important in the context of global warming?

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Carbon dioxide is a major greenhouse gas that is released through human activities like burning fossil fuels and deforestation, contributing significantly to global warming.

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What role do trees play in combating global warming?

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Trees absorb carbon dioxide from the atmosphere during photosynthesis, helping to reduce the concentration of greenhouse gases.

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What is the stratosphere?

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The stratosphere is the second layer of Earth's atmosphere, located above the troposphere, and contains the ozone layer that protects us from harmful UV radiation.

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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 absorbs most of the Sun's harmful ultraviolet radiation.

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What happens when the ozone layer is depleted?

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

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What is the difference between natural and anthropogenic greenhouse gases?

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Natural greenhouse gases are produced by natural processes, while anthropogenic greenhouse gases are emitted through human activities, such as industrial processes and transportation.

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What is the impact of deforestation on global warming?

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Deforestation increases global warming by reducing the number of trees that can absorb carbon dioxide, leading to higher concentrations of greenhouse gases in the atmosphere.