Once, many years ago, when I was working in a junk-mail mill, I got some joy out of a simple sign just about a mile away from the site of this employment. The sign, on a smallish road, warned drivers that racoons and other small critters were crossing thereabouts, so it would be wise to proceed with caution. Or, at least, that is what I imagine was the point of posting the sign. It said simply, "Slow animals crossing". I found it joyful because I would always say to myself while passing, "Gee, I guess the smarter animals cross a little further down the road." I guess we're supposed to imagine a punctuation point after the word "slow" to foreclose such an interpretation.
Beyond the usual concern that the total or partial closure of the Strait of Hormuz drives up the price of the stuff we put in our cars, there is a concern only slowly bubbling to public consciousness -- that it will also drive up the cost of fertilizer and accordingly of food. The traditional route for the manufacture of fertilizer is through what chemists call the Haber-Bosch process, which makes ammonia, which can be used as a fertilizer in itself or can be combined with other stuff for more elaborate fertilizers. There has been a lot of talk about moving beyond Haber-Bosch, finding alternative ways of making ammonia and growing the world's food, in part precisely because natural gas is an input, and relatedly because CO₂ is a major byproduct of that process. A move toward alternative processes is a move toward a low or net zero carbon emissions world. It is certainly possible that even a partial blockage of Hormuz will kick-start the implementation of alternatives...