What does global warming refer to?

• A. Decrease in Earth's average temperature
• B. Increase in Earth's average temperature
• C. Stabilization of Earth's temperature
• D. Seasonal temperature variations

Answer: (B)

Global warming refers to the increase in Earth's average temperature, primarily due to human activities such as the burning of fossil fuels, deforestation, and industrial processes that release greenhouse gases into the atmosphere. These gases, including carbon dioxide and methane, trap heat from the sun, leading to a gradual rise in global temperatures. This phenomenon is a significant aspect of climate change, affecting weather patterns, ice melt, sea levels, and ecosystems worldwide.

The other options focus on concepts that do not align with the established definition of global warming. A decrease in Earth's average temperature contradicts the term itself, as does any notion of stabilization or seasonal variations, which are part of normal climate patterns but do not represent the long-term trend observed in global warming. Understanding this concept is crucial for those studying F-Gas and ODS regulations since many refrigerants contribute to greenhouse gas emissions and their impact on global temperatures.