The International Energy Agency warns that Europe may only have enough jet fuel for about six weeks. These shortages could lead to flight cancellations if global oil supplies remain restricted by geopolitical conflicts.

Europe has “maybe 6 weeks or so [of] jet fuel left”, the head of the International Energy Agency said on Thursday in a wide-ranging interview, warning of possible flight cancellations “soon” if oil supplies remain blocked by the Iran war. IEA executive director Fatih Birol painted a sobering picture of the global repercussions of what he called “the largest energy crisis we have ever faced”, stemming from the pinch-off of oil, gas and other vital supplies through the Strait of Hormuz. “In the...