Researchers Suspect methane could be belched into Titan's ambiance by cryovolcanism—volcanoes releasing chilled h2o in place of molten rock lava—Nevertheless they’re not specific if this or Another system is dependable. “Methane inside the environment is wrecked by ultraviolet light-weight, so there has to be some replenishment,” points out Lopes. “And waiting for link from Wiki Articles (22)