Deforestation involves the clearing of Earth's forests on a large scale, reducing forest cover to about 30% of the world's land. The main drivers of deforestation are agriculture, as small farmers clear land to feed their families, and the global demand for wood and paper products. While some deforestation occurs naturally through wildfires and overgrazing, human activities are the primary cause and have negative environmental impacts such as loss of habitat for many species. Reforestation efforts aim to plant new trees to replace those cut down and help reduce deforestation.