The Icelandic language of Reykjavik means “smoke city”. It is said that when people came to settle in the 9th century, they saw the white smoke rising from the shore and mistakenly thought that the water vapor in the hot spring was smoke. So got its name. Because geothermal resources are abundant here and geothermal energy supplies energy to the city's industry, boilers and chimneys are not visible here. The sky here is blue and the city is neat and clean with almost no pollution, so it is called the “smoke-free city”.