To many people, 'biodiversity' is almost synonymous with the word 'nature,' and 'nature' brings to mind steamy forests and the big creatures that dwell there. Fair enough. But biodiversity is much more than that, for it encompasses not only the diversity of species, but also the diversity within species.

Not all of them, but certainly there's some really, really dramatic differences among apples. And what you learn if you have that number of varieties is you learn which Apple is good for which purpose. So I have a favorite apple for apple pie. It's called Bramley Seedling. It's a old British Apple. I blend a lot of these apples together that make apple cider every year. It's a great hobby, but it's, you know, it takes some time. And it can be frustrating when the Japanese beetles or the gypsy moths come.

The coldest growing seasons of the future [will be] hotter than the hottest of the past. Is agriculture adapted to that? I don't know. Can fish play the piano?

At the Global Crop Diversity Trust, we work to conserve the diversity that will allow the adaptation and evolution of our agricultural crops in the context of climate change and other challenges.

To many people, 'biodiversity' is almost synonymous with the word 'nature,' and 'nature' brings to mind steamy forests and the big creatures that dwell there. Fair enough. But biodiversity is much more than that, for it encompasses not only the diversity of species, but also the diversity within species.

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.

I'm not talking about losing [agricultural] 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.