This seems interesting. Although 1 gram per day doesn't sound much, their vision of something like container-size reactor with solar on roof could generate enough ammonia for an acre of crops, or about 5 tons of corn or similar. That's not huge, imagining a container on every acre, but for 3rd world countries that container could support local food production, like 50 chickens laying 40 eggs per day plus some chicken meat, probably enough for a single family all in all. But would that family be able to buy such ammonia reactor? Doubtful. A village maybe, but that would require end product to be like 10x more efficient. I'm no farmer or economist, so this is more of an IMHO rant, as I was interested in actual usefulness of this. Hopefully they can scale it and get the numbers up.