Iran is a major oil producer, so is Russia and the Ukraine, and the United States are bombing Iran's refineries. Iran is bombing neighboring countries refineries, Russia is bombing Ukrainian refineries and Ukraine is bombing Russias oil refineries, to the point where 60% is offline presently, and by bombing I'm including missile and drone strikes.

A substantial portion of the worlds refinery capacity offline, and harvest season is coming and it will come with a diesel shortage. Farmers, faced with the choice of spending $15/gallon for diesel to harvest, or letting the crops rot on the ground when they know people can't afford significantly higher food prices, may choose the latter, leading to food shortages this winter.