What is Green house effect ? How does it affect the global climate ?

Explanation

**Step-by-Step Solution:**

1. **Definition of Greenhouse Effect:**
The greenhouse effect is a natural process that occurs when certain gases in the Earth's atmosphere, known as greenhouse gases, trap heat from the sun. This process helps to maintain the Earth's temperature and makes it suitable for life.

2. **Role of Greenhouse Gases:**
Greenhouse gases include carbon dioxide (CO2), water vapor, chlorofluorocarbons (CFCs), and nitrogen oxides (NOx). These gases have the unique ability to absorb infrared (IR) radiation emitted from the Earth’s surface.

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