Global Warming

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What is global warming?

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Global warming refers to the long-term increase in Earth's average surface temperature due to human activities, primarily the emission of greenhouse gases.

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What are greenhouse gases?

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

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How do human activities contribute to global warming?

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Human activities, such as burning fossil fuels, deforestation, and industrial processes, release greenhouse gases into the atmosphere, enhancing the greenhouse effect.

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What is the greenhouse effect?

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The greenhouse effect is the warming of the Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

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What is the primary source of carbon dioxide emissions?

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

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What is the relationship between CO2 concentrations and global temperatures?

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As carbon dioxide concentrations in the atmosphere increase, global temperatures tend to increase as well.

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What are chlorofluorocarbons (CFCs)?

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Chlorofluorocarbons (CFCs) are man-made compounds that were commonly used in refrigeration and aerosol propellants, which can deplete the ozone layer.

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How do CFCs affect the ozone layer?

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CFCs release chlorine atoms in the stratosphere, which catalyze the breakdown of ozone (O3) molecules, leading to ozone depletion.

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What is the role of ozone in the atmosphere?

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Ozone in the stratosphere protects life on Earth by absorbing the majority of the sun's harmful ultraviolet (UV) radiation.

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What are the consequences of ozone layer depletion?

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Consequences of ozone layer depletion include increased UV radiation reaching the Earth's surface, which can lead to higher rates of skin cancer and cataracts.

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