Yanar Dag, "burning mountain", is a natural gas fire which blazes continuously from the ground on a hillside peninsula where?
Caspian Sea The flaming hillside is near Baku, the capital of Azerbaijan.
During his career from 1959 to 1993, who battled more than 2,000 fires in oil and natural gas wells, notably in 1962 when he tackled a fire at a gas field in the Sahara nicknamed the Devil's Cigarette Lighter, a 450-foot (137 m) flame?
Where do the Bovanenkovo–Ukhta and Bovanenkovo–Ukhta 2 natural gas pipelines, which went live in 2012 and 2014, draw their gas from?