I’ve been fascinated with crop diversity for about thirty-five years now, ever since I stumbled across a fairly obscure academic article by a guy named Jack Harlan. He described diversity within crops — all the different kinds of wheat and rice and such — as a genetic resource. He said, “This genetic resource,” — and I’ll never forget the words — “stands between us and catastrophic starvation on a scale we cannot imagine.”
I figured he was either really on to something, or he was one of these academic nutcases. So, I looked a little further, and I figured out that he wasn’t a nutcase. He was the most respected scientist in the field. What he understood was that biological diversity–crop diversity—is the foundation of agriculture. It’s the raw material, the stuff, of evolution in our agricultural crops. Not a trivial matter. And he also understood that that foundation was crumbling, literally crumbling. That indeed, a mass extinction was under way in our fields, in our agricultural system. And that this mass extinction was taking place with very few people noticing and even fewer caring.
Now, I know that many of you don’t stop to think about diversity in agricultural systems and, let’s face it, that’s logical. You don’t see it in the newspaper every day. And when you go into the supermarket, you certainly don’t see a lot of choices there. You see apples that are red, yellow, and green and that’s about it.
So, let me show you an example of diversity. Here are some beans, and there are about thirty-five or forty different varieties of beans in this picture. Now, imagine each one of these varieties as being distinct from another about the same way as a poodle from a Great Dane. If I wanted to show you a picture of all the dog breeds in the world, and I put thirty or forty of them on a slide, it would take about ten slides because there about four hundred breeds of dogs in the world. But there are thirty-five thousand to forty thousand different varieties of beans. So if I were to going to show you all the beans in the world, and I had a slide like this, and I switched it every second, it would take up my entire TED talk, and I wouldn’t have to say anything.
But the tragic thing is that this diversity is being lost. We have about two hundred thousand different varieties of wheat, and we have about two hundred thousand to four hundred thousand different varieties of rice, but it’s being lost. And I want to give you an example of just how much is being lost. It’s a bit of a personal example, in fact. In the United States, in the 1800s—that’s where we have the best data—farmers and gardeners were growing seven thousand one hundred named varieties of apples. Imagine that. More than seven thousand types of apples with names. Today, six thousand eight hundred of those are extinct, no longer to be seen again.
I used to have a list of these extinct apples, and when I would go out and give a presentation, I would pass the list out in the audience. I wouldn’t tell them what it was, but it was in alphabetical order, and I would tell them to look for their names, their family names, their mother’s maiden name. And at the end of the speech, I would ask, “How many people have found a name?” And I never had fewer than two-thirds of an audience hold up their hand. And I said, “You know what? These apples come from your ancestors, and your ancestors gave them the greatest honor they could give them. They gave them their name. The bad news is they’re extinct. The good news is a third of you didn’t hold up your hand. Your apple’s still out there. Find it. Make sure it doesn’t join the list.”
So, I want to tell you that the piece of the good news is that the Fowler apple is still out there. I’ve got an book here, and I want to read a piece from it. This book was published in 1904. It’s called “The Apples of New York” and this is the second volume. See, we used to have a lot of apples. And the Fowler apple is described in here — I hope this doesn’t surprise you — as, “a beautiful fruit.” (Laughter) I don’t know if we named the apple or if the apple named us, but … but, to be honest, the description goes on and it says that it “doesn’t rank high in quality, however.” And then he has to go even further. It sounds like it was written by an old school teacher of mine. “As grown in New York, the fruit usually fails to develop properly in size and quality and is, on the whole, unsatisfactory.”
I guess there’s a lesson to be learned here, and the lesson is: so why save it? I get this question all the time. Why don’t we just save the best ones? And there are a couple of answers to that question. One thing is that there is no such thing as a best one. Today’s best variety is tomorrow’s lunch for insects or pests or disease. The other thing is that maybe that Fowler apple or maybe a variety of wheat that’s not economical right now has disease or pest resistance or some quality that we’re going to need for climate change that the others don’t. So it’s not necessary, thank God, that the Fowler apple is the best apple in the world. It’s just necessary or interesting that it might have one good, unique trait. And for that reason, we ought to be saving it. Why? As a raw material, as a trait we can use in the future. Think of diversity as giving us options. And options, of course, are exactly what we need in an era of climate change.
I want to show you two slides, but first, I want to tell you that we’ve been working at the Global Crop Diversity Trust with a number of scientists—particularly at Stanford and University of Washington—to ask the question: “What’s going to happen to agriculture in an era of climate change and what kind of traits and characteristics do we need in our agricultural crops to be able to adapt to this?” In short, the answer is that in the future, in many countries, the coldest growing seasons are going to be hotter than anything those crops have seen in the past. The coldest growing seasons of the future, hotter than the hottest of the past. Is agriculture adapted to that? I don’t know. Can fish play the piano? If agriculture hasn’t experienced that, how could it be adapted?
Now, the highest concentration of poor and hungry people in the world, and the place where climate change, ironically, is going to be the worst is in South Asia and sub-Saharan Africa. So I’ve picked two examples here to show you. In the histogram before you now, the blue bars represent the historical range of temperatures, going back about far as we have temperature data. And you can see that there’s some difference between one growing season and another. Some are colder, some are hotter and it’s a bell shaped curve. The tallest bar is the average temperature for the most number of growing seasons. In the future, later this century, it’s going to look like the red, totally out of bounds. The agricultural system and, more importantly, the crops in the field in India have never experienced this before.
Here’s South Africa. The same story. But the most interesting thing about South Africa is we don’t have to wait for 2070 for there to be trouble. By 2030, if the maize, or corn, varieties—the dominant crop; fifty percent of the nutrition in Southern Africa—are still in the field, in 2030, we’ll have a thirty percent decrease in production because of the climate change already under way. A thirty percent decrease of production in the context of increasing population is a food crisis. It’s global in nature. We will watch children starve to death on TV. Now, you may say that twenty years is a long way off. However, it’s two breeding cycles for maize. We have two rolls of the dice to get this right. We have to get climate-ready crops in the field, and we have to do it rather quickly.
Now, the good news is that we have conserved. We have collected and conserved a great deal of biological diversity, agricultural diversity, mostly in the form of seed, and we put it in seed banks, which is a fancy way of saying a freezer. If you want to conserve seed for the long term and you want to make it available to plant breeders and researchers, you dry it and then you freeze it. Unfortunately, these seed banks are located around the world in buildings, which are vulnerable. Disasters have happened. In recent years we lost the gene bank, the seed bank, in Iraq and Afghanistan. You can guess why. We’ve also lost them In Rwanda and in the Solomon Islands. And then there are daily disasters that take place in these buildings—financial problems and mismanagement and equipment failures, and all kinds of things. Every time something like this happens, it means extinction. We lose diversity. I’m not talking about losing diversity in the same way that you lose your car keys. I’m talking about losing it in the same way that we lost the dinosaurs: actually losing it, never to be seen again.
So, a number of us got together and decided that, “enough is enough.” We need to do something about this. We need to have a facility that can really offer protection for our biological diversity. Maybe it’s not the most charismatic diversity: you don’t look in the eyes of a carrot seed quite in the way you do a panda bear. But it’s very important diversity.
We needed a really safe place, and we went quite far north to find it. To Svalbard, in fact. This is above mainland Norway. It’s as far as you can fly on a regularly scheduled airplane. It’s a remarkably beautiful landscape. I can’t even begin to describe it to you. It’s otherworldly beautiful. We worked with the Norwegian government and with the NorGen, the Norwegian Genetic Resources Program, to design this facility, which is built into a mountain in Svalbard. The idea of Svalbard was that it’s cold, so we get natural freezing temperatures. It’s remote and accessible, so it’s safe and we don’t depend on mechanical refrigeration.
It’s now a reality. And here’s the front door of this facility. When you open up the front door, this is what you’re looking at. It’s pretty simple. It’s a hole in the ground. It’s a tunnel, and you go into the tunnel, chiseled in solid rock, about 130 meters. There are now a couple of security doors, so you won’t see it quite like this. Again, when you get to the back, you get into an area that’s really my favorite place. I think of it as sort of a cathedral. And I know that this tags me as a bit of a nerd, but … (Laughter) Some of the happiest days of my life have been spent … (Laughter) in this place.
If you were to walk into one of these rooms, you would see this. It doesn’t look very exciting, but if you know what’s there, it’s pretty emotional. We have now about four hundred twenty-five samples of unique crop varieties. There are seventy thousand samples of different varieties of rice in this facility right now. About a year from now, we’ll have over half a million samples. We’re going up to over a million, and someday we’ll have samples—about five hundred seeds—of every variety of agricultural crop that can be stored in a frozen state in this facility. This is a backup system for world agriculture. It’s a backup system for all the seed banks. Storage is free. It operates like a safety deposit box. Norway owns the mountain and the facility, but the depositors own the seed. And if anything happens to their agriculture, they can come back and get it. This particular picture that you see shows the national collection of the United States, of Canada, and an international institution from Syria.
I think it’s interesting in that this facility is almost the only thing I can think of where literally every country in the world—because we have seeds from every country in the world—have gotten together to do something that’s long term, sustainable and positive. I can’t think of anything else that’s happened in my lifetime that way.
I can’t look you in the eyes and tell you that I have a solution for climate change, or for the water crisis. (Agriculture takes seventy percent of fresh water supplies on earth.) I can’t look you in the eyes and tell you that there is a solution for those things, or the energy crisis, or world hunger, or peace in conflict. But I can look you in the eyes and tell you that we can’t solve any of those problems if we don’t have crop diversity. Because, quite literally, if agriculture doesn’t adapt to climate change, neither will we.
So, this is not just something pretty and nice to do. It is, I agree, a nice thing to do. But it’s also a necessary thing to do. I believe that we, as an international community, should get organized to complete the task. The Svalbard Global Seed Vault is a wonderful gift that Norway and others have given us, but it’s not the complete answer. We need to collect the remaining diversity that’s out there. We need to put it into good seed banks that can offer those seeds to researchers in the future. We need to catalog it. It’s a library of life, but right now I would say we don’t have a card catalog for it. And we need to support it financially.
My big idea would be that, while I is commonplace to endow an art museum or a chair at a university, we really ought to be thinking about endowing wheat. Thirty million dollars in an endowment would take care of preserving all the diversity in wheat forever. So we need to be thinking a little bit in those terms.
And my final thought is that by conserving wheat, rice, potatoes, and the other crops, we may, quite simply, end up saving ourselves.
This is the excerpted transcript of a TEDGlobal talk given July 2009. Used by Creative Commons License. The full talk can be seen here: http://www.ted.com/talks/cary_fowler_one_seed_at_a_time_protecting_the_future_of_food.html