Device uses wind to create ammonia out of air

How do we create this right now?

What are the costs for the catalysts and how long do they last?

Those sorts of questions feel important to understand.

Most ammonia is produced via the Haber process. It takes nitrogen from the air and hydrogen from natural gas and combines them into ammonia. It uses an iron catalyst. This process emits significant CO2.

https://en.wikipedia.org/wiki/Haber_process

Currently hydrogen made from natural gas is the cheapest, but the Haber process could equally well use hydrogen made from water electrolysis using solar/wind energy.

In that case there will be no production of CO2.

The only reason why this is not done yet is because avoiding the production of CO2 would raise the cost of ammonia, then the costs of fertilizers and various other chemical substances, including explosives, which would trigger a cascade of price increases in food and in many other products.

> but the Haber process could equally well use hydrogen made from water electrolysis using solar/wind energy.

You can also use methane pyrolysis, which outputs solid carbon instead of CO2. It's supposed to be somewhere in the middle of cost between steam methane reforming and water electrolysis.