Planting trees in barren lands to create forests is important because it provides an alternative source of natural resources. Afforestation involves planting trees where there were none before to form a new forest, whereas reforestation increases the number of trees in existing forests. Afforestation is crucial for maintaining biodiversity. Organizations, both governmental and non-governmental, work together on afforestation projects to create forests, increase carbon absorption and storage, and enhance biodiversity levels. By planting trees in areas lacking them, we can help protect our environment and support a healthier ecosystem.