Coal-To-Liquids (CTL) is a process that converts solid coal into liquid fuels, such as diesel and jet fuel. This technology involves gasifying coal to produce syngas, a mixture of carbon monoxide and hydrogen, which is then transformed into liquid hydrocarbons through chemical reactions. CTL can help reduce dependence on crude oil by providing an alternative source of liquid fuels. However, it raises environmental concerns due to greenhouse gas emissions and the impact of coal mining. As a result, the sustainability of CTL is often debated in the context of energy production and climate change.