The stratosphere (/ËstrÃ¦tÉËsfÉªÉr, -toÊ-/) is the second major layer of Earth's atmosphere, just above the troposphere, and below the mesosphere. About 20% of the atmosphere's mass is contained in the stratosphere.
The chainsaw is a highly effective and efficient tree and branch cutting power tool. It works with an engine, referred to as a power head; powering a metal chain, driven by a centrifugal clutch, with a chain moving around a groove in the guide bar at fast speeds.
The Portland Chainsaw Masquerade is a mission in Grand Theft Auto: Liberty City Stories. It is the final mission given to protagonist Toni Cipriani by Vincenzo Cilli from his warehouse in the Atlantic Quays district of Portland Island, Liberty City.