Monorails are a relatively new form of transportation that are being explored as an environmentally friendly alternative to traditional modes of transportation. Monorails are powered by electricity, which is a renewable energy source that produces zero emissions. They also require less energy to operate than cars, buses, and trains, and they require less space than traditional rail systems. Monorails also reduce noise pollution and can operate in areas that are inaccessible to other forms of transportation. Additionally, monorails are more efficient and have the potential to reduce air pollution in urban areas. Overall, monorails have the potential to be an environmentally friendly form of transportation.