Americans trash the planet not because we're evil, but because the industrial systems we've devised leave no other choice. Our ranch houses and high-rises, factories and farms, freeways and power plants were conceived before we had a clue how the planet works.

Create a garden; bring children to farms for field trips. I think it's important that parents and teachers get together to do one or two things they can accomplish well - a teaching garden, connecting with farms nearby, weave food into the curriculum.

The history of Montana has been of the government giving land grants to people that could not possibly turn it into decent farms. And that's destroying their lives. So they don't see the government as something that's out there to help them.

After I joined Google and stopped working on robots - I'd built some self-driving tractors on farms in the meantime - I was always tinkering and playing with robots at home and just as a hobby.

The farmers in Kansas are sorely in need of a credit system meeting their special requirements, that they may more readily obtain money on short or long time for their farming operations, or that they may become owners of farms.

In the five years from 2007 to 2012, we only gained a little over 1,200 farmers. Since we aren't going to stop eating, we have to reverse that trend, or we'll see even more consolidation, more corporate farms, or increasing food imports; none of that is in our interest.