Question

What do you mean by global warming ?

Hint:

A concise definition should include three points: 1) it's a long-term increase in Earth's average temperature, 2) it's caused by human activities increasing greenhouse gases, and 3) the main activity is burning fossil fuels.

Answer 1

Global warming refers to the long-term increase in the Earth's average surface temperature due to human activities. It is a major aspect of climate change.
The primary cause of global warming is the enhanced greenhouse effect. This occurs when certain gases in the atmosphere, known as greenhouse gases, trap heat from the sun that would otherwise radiate back into space. While the greenhouse effect is a natural process that keeps the Earth warm enough for life, human activities have significantly increased the concentration of these gases.
Key aspects of global warming include:

Primary Cause: The burning of fossil fuels (coal, oil, and natural gas) for energy, which releases large amounts of carbon dioxide (CO2). Deforestation also contributes, as trees absorb CO2.
Key Greenhouse Gases: Carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).
Consequences: Rising sea levels, more frequent and intense heatwaves, changes in precipitation patterns, and disruption of ecosystems.