methanol: an alcohol manufactured from coal, natural gas or waste wood, which is used as a fuel or solvent. Formula: CH3OH. Also called methyl alcohol, wood alcohol. Biodiesel is made by mixing vegetable oil with methanol, giving glycerine as a by-product. Its source is natural and renewable and it dramatically reduces exhaust emissions of smoke and soot, carbon monoxide and sulphur dioxide, the cause of acid rain. Methanol can be used as a fuel in any type of burner. Its main disadvantage is that it is less efficient than petrol and can cause pollution if it escapes into the environment, as it mixes easily with water. Production of methanol from coal or natural gas does not help fuel conservation, since it depletes Earths fossil fuel resources. Understanding the production and uses of methanol can help farmers utilize alternative fuels more effectively, contributing to environmental sustainability and energy efficiency.