They also talk about ammonia replacing methane in power plants, which is problematic.

It’s very difficult to combust ammonia without producing a lot of NOx. That means more smog, acid rain, asthma and other respiratory disorders.

We’ve gone to huge efforts to reduce and eliminate NOx emissions from vehicles and power plants, so it would be a major setback to start adding new sources of it.

Wouldn’t industrial processes that use H2 directly generally be preferable to having ammonia as an intermediary?