You know what else isn't likely to cause human extinction? Weaning ourselves off fossil fuels.
Yet, for some reason, when this is brought up the same people are suddenly very, very hostile to any kind of change.
Yet, for some reason, when this is brought up the same people are suddenly very, very hostile to any kind of change.
You might want to look into where the fertilizer that grows the world's food crops comes from, and exactly how that food gets distributed around the globe.
Extinction? Probably not. Mass deaths? Yeah, that would be very likely.
Caveat: assuming that the fossil fuels aren't replaced with nuclear power, but in general those who hate fossil fuels are even more vehemently opposed to nukes.
At least you seem to agree that "humanity not going extinct" is a patently silly standard to compare anything against. Well, that's a progress.
If the Corn Belt moves up into Saskatchewan, Illinois would probably switch to producing rice, cotton, sugar cane, citrus fruit, or some other warm-weather crop.
What's patently silly is your idea that farmers are too stupid to switch to crops suited for the local climate.
Talk is cheap. Results matter. Especially when you're talking about the food supply for billions of people.