Why is deforestation going on?

Deforestation is permanent destruction of forest areas. In recent reports by the United Nations Food and Agriculture Organization, nearly 18 million acres of forest are destroyed on an annual basis, and this amount continues to increase each year. In terms we can all understand, the World Wildlife Fund (WWF) equates the number of forests lost each year as approximately equal to losing 27 soccer fields's worth of trees each minute. Deforestation contributes to climate change and affects the quality of life of every individual on Earth. It is a critical problem and one that is solvable.
There are several reasons for deforestation. Urbanization and the expansion of infrastructure to build new homes and commercial buildings have substantively altered the amount of forest left. Indiscriminately clearing land for new construction with little regard for the native species of trees (and other flora and fauna) is a significant contributor to the reduction of forests.
Agriculture may be the most significant contributor to deforestation. The land is stripped of trees to accommodate crops and cattle to produce food. Logging is a significant contributor to deforestation as well, as logs are used for construction and for products like paper.
Mining in some parts of the world has led to the destruction of forests. Although not as prevalent as it once was in the United States, strip mining without forest restoration is a common practice in other parts of the world. The increased pressure placed on trees from population growth and the destruction of various tree species has resulted in some forests being ravaged by diseases that affect trees.
When you look at the causes of deforestation, it is apparent that deforestation is a problem that has a relatively inexpensive solution and can be reversed. Using fewer products made from wood, improved agriculture techniques, and repurposing buildings in place of new construction would avoid much of the tree loss. Replanting forests will not replace what is lost, but it can, in the long term, revive areas that were once completely forested.
https://earthobservatory.nasa.gov/features/Deforestation/deforestation_update3.php

https://www.nationalgeographic.com/environment/global-warming/deforestation/

https://www.worldwildlife.org/threats/deforestation-and-forest-degradation