“Is there any evidence that variety of, say, produce in markets/grocery stores is less now than a hundred years ago?”
Not in markets, because a hundred years ago most people didn't get their produce from a market. They got it from their own gardens or the local farm.
The issue here is that back then, there were lots and lots of different varieties of a given crop, all of them grown regionally. There are thousands and thousands of varieties of corn. In 1915, 200 of these were grown commercially in Kansas. Today, Reid Yellow Dent, a type of field corn, has basically take over the market. 99% of all corn grow in the US is a subvariety of yellow dent.
Walk into your market. When it's in season you will find a bin of sweet corn (which is not field corn). There will be one variety. Thre will be one variety of broccoli. Three or four varieties of potatoes. Two types of summer squash, one of which will be zucchini.
At a high end market you will be given a choice between two types of beef: “beef” and “angus beef”. One type of lamb, and one type of chicken. But there are hundreds of varieties of beef cow, tens of varieties of meet sheep, and at least fifty different varieties of meat or dual-use chicken.
Look through a good heirloom seed catalog some time (I like Southern Exposure Seed Exchange). You'll find a hundred types of tomato, fifteen or twenty types of potato, ten types of sweet potato, twenty varieties of corn, ten varieties of broccoli. Plus some crops that you just can't find in a market.
It's not that any individual's food choices are more constrained now than they used to be; that's clearly not the case. It's that the total amount of genetic diversity in corn, potatoes, or whatever, as a fraction of the total acreage of those crops, has dropped precipitously.
Right, and what's the problem there? The old type of banana that was popular got wiped out, and we adapted. The current popular type is, IIRC, slowly getting wiped out as we speak. That sucks, but we'll adapt again. As long as the plants/seeds for other varieties exist somewhere, we'll find a way to adapt.
Heck, if anything, we're probably more flexible now since it's now possible to directly genetically engineer new varieties and we have massive seedbanks around with modern infrastructure for distribution.
> Not in markets, because a hundred years ago most people didn't get their produce from a market. They got it from their own gardens or the local farm.
For people in rural areas, sure, but in more urban areas I'm sure they had markets of some sort.
Not in markets, because a hundred years ago most people didn't get their produce from a market. They got it from their own gardens or the local farm.
The issue here is that back then, there were lots and lots of different varieties of a given crop, all of them grown regionally. There are thousands and thousands of varieties of corn. In 1915, 200 of these were grown commercially in Kansas. Today, Reid Yellow Dent, a type of field corn, has basically take over the market. 99% of all corn grow in the US is a subvariety of yellow dent.
Walk into your market. When it's in season you will find a bin of sweet corn (which is not field corn). There will be one variety. Thre will be one variety of broccoli. Three or four varieties of potatoes. Two types of summer squash, one of which will be zucchini.
At a high end market you will be given a choice between two types of beef: “beef” and “angus beef”. One type of lamb, and one type of chicken. But there are hundreds of varieties of beef cow, tens of varieties of meet sheep, and at least fifty different varieties of meat or dual-use chicken.
Look through a good heirloom seed catalog some time (I like Southern Exposure Seed Exchange). You'll find a hundred types of tomato, fifteen or twenty types of potato, ten types of sweet potato, twenty varieties of corn, ten varieties of broccoli. Plus some crops that you just can't find in a market.
It's not that any individual's food choices are more constrained now than they used to be; that's clearly not the case. It's that the total amount of genetic diversity in corn, potatoes, or whatever, as a fraction of the total acreage of those crops, has dropped precipitously.