A building releases steam at Misawa Air Base, Japan, Jan. 26, 2017. In order to provide heat to buildings, water is sent to boilers which vaporize and go through several pipes throughout the base. Once the steam reaches a building, it goes through a compactor, separating the heat from the water and blowing it into the rooms. (U.S. Air Force photo by Airman 1st Class Sadie Colbert)