All airports in climates conducive to ground icing will have some kind of ground deicing systems in place.
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Inland's Portland plant takes the spent chemical and recycles it back into usable propylene glycol to again deice planes at several other airports — or for other uses, such as windshield wiper fluid or lavatory fluid. That process takes several months.
Blue ice runways in Antarctica include: Pegasus Field, Ross Dependency, serving McMurdo Station, and operated by the United States Antarctic Program (closed since 2016) Troll Airfield, Queen Maud Land, serving Troll Station, and operated by the Norwegian Polar Institute.
Water salutes have been used to mark the retirement of a senior pilot or air traffic controller, the first or last flight of an airline to an airport, the first or last flight of a specific type of aircraft, as a token of respect for the remains of soldiers killed in action, or other notable events.
It's not uncommon to see planes being sprayed before takeoff. The spray is a heated mixture of glycol and water. It has a lower freezing temperature than just water.This breaks off ice already formed and prevents more from building up.