When we seed millions of acres of land with these plants, what happens to foraging birds, to insects, to microbes, to the other animals, when they come in contact and digest plants that are producing materials ranging from plastics to vaccines to pharmaceutical products?

What's really clear to all of us in the business community is that GDP is slowing everywhere. And the reason is productivity has been declining now for 15 or 20 years all over the world. So we've got very high unemployment, and it's structural. And it's compounded by real-time climate change - that's really a game changer.

We are already producing enough food to feed the world. We already have technology in place that allows us to produce more than we can find a market for.

We need a game plan to deploy it very quickly to both move the economy forward and create the new businesses and jobs, and address climate change. It's a pretty big task. Pretty challenging.

I know quite a few farmers all over the United States who have tried this and have said the opposite, that they have to use more herbicides, not less. The same holds true with BT.

Starvation does not occur because of a world food shortage. If everyone ate a vegetarian, or better still, a vegan diet there would be enough food for everyone. The only sane way forward is to grow food for humans rather than to feed it to farmed animals.

The world's environment can no longer handle beef.