Char, commonly known as charcoal, is a black, porous material produced by burning organic substances, such as wood, in the absence of oxygen. This process, called pyrolysis, removes water and volatile compounds, leaving behind a lightweight, carbon-rich substance. Char is widely used for various purposes, including fuel for grilling, art supplies, and as a filtration medium. In addition to its practical uses, char has environmental benefits. It can improve soil quality when added as biochar, enhancing nutrient retention and promoting plant growth. Furthermore, char can help sequester carbon, potentially mitigating climate change by reducing greenhouse gas emissions.