Bioethanol is a type of renewable energy made from organic materials, such as corn, sugarcane, or cellulosic biomass. It is produced through fermentation, where sugars are converted into alcohol by yeast. Bioethanol can be used as a fuel for vehicles, often blended with gasoline to reduce greenhouse gas emissions and dependence on fossil fuels. This alternative energy source is considered more environmentally friendly than traditional fuels because it can help lower carbon emissions. Additionally, bioethanol production can support local agriculture and economies by creating demand for crops. However, it also raises concerns about land use and food supply.