The biggest island in the world is **Greenland**.

**Location and Size:**
- Greenland is located in the North Atlantic Ocean and is part of the Kingdom of Denmark.
- It is the world's largest island, covering approximately 2,166,086 square kilometers.

**Geography and Climate:**
- Greenland is known for its vast ice sheet that covers about 80% of the island.
- The island has a polar climate with long, cold winters and short, cool summers.

**Population and Culture:**
- Despite its large size, Greenland has a relatively small population of around 56,000 people.
- The indigenous people of Greenland are predominantly Inuit, and their traditional way of life is still prevalent in many parts of the island.

**Economy and Tourism:**
- Greenland's economy is largely dependent on fishing and mining, particularly of minerals such as zinc and gold.
- Tourism is also a growing industry in Greenland, with visitors attracted to the island's stunning natural beauty and unique culture.

**Environmental Concerns:**
- Climate change is a major concern for Greenland, as rising temperatures are causing the ice sheet to melt at an alarming rate.
- This not only affects the local environment but also has global implications for sea level rise.

In conclusion, Greenland stands out as the largest island in the world, offering a unique blend of breathtaking landscapes, rich culture, and environmental challenges.