Fossil gas is a feedstock for the Haber-Bosch process used to make fertiliser (but invented for making early 20th Century munitions).
Gas has been plentiful and cheap in the Persian Gulf and so it has made sense to build out decades of infrastructure to make fertiliser at point of source.
Consequently, about one third of the world’s fertiliser demand has been met by moving it through the Gulf and out into the wider world.
And now that’s not happening…

