Stratoshphere
The stratosphere is an atmospheric layer composed of stratified temperature layers, with the warm layers of air high in the sky and the cool layers of air in lower altitudes . It is located above the troposphere and below the mesosphere . The Strat Hotel, Casino & Skypod in Las Vegas, NV is home to the tallest freestanding observation tower in the United States . The stratosphere plays an important role in Earth's climate by absorbing ultraviolet radiation from the Sun .