Deforestation is clearing the world's forests on a massive scale, damaging land quality and having far-reaching environmental and economic consequences. Trees supply oxygen, absorb carbon dioxide, and prevent soil erosion. Deforestation occurs mainly for agriculture, mining, infrastructure, and grazing, but damages the environment by increasing CO2 levels, destroying habitats, and potentially causing species extinction. While deforestation provides short-term economic gains, the long-term economic losses outweigh these benefits.