Give one reason for melting of the polar ice caps.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Context**: The question asks for a reason behind the melting of polar ice caps. To answer this, we need to consider environmental changes that have occurred over time.

2. **Identifying Key Events**: One significant event that has impacted the environment is the Industrial Revolution, which began in the late 18th century. This period marked a shift towards industrialization and increased use of fossil fuels.

3. **Recognizing Greenhouse Gas Emissions**: The Industrial Revolution led to a substantial increase in the emission of greenhouse gases, particularly carbon dioxide (CO2). These gases are released from burning fossil fuels, deforestation, and various industrial processes.

...