Water and air are all you need to make one of world’s most important chemicals

Water and air are all you need to make one of world’s most important chemicals | Ars Technica:
Researchers have developed a method to produce ammonia starting only with air and water. 
Not only is it more energy efficient than the century-old Haber-Bosch process that’s currently in use, but it’s also greener.
The ability to mass produce Ammonia—made up of three parts hydrogen and one part nitrogen (or NH3)—has had a momentous impact on society.
Without the ready availability of this chemical, it is estimated that as many as a third of us won't be alive.
This is because its main use is in fertilizer production, which has helped improve crop yields and sustain a large population.
...Licht's method claims to use only two-thirds of the energy of the Haber-Bosch process.
Along with the elimination of the need to produce hydrogen from natural gas, the overall carbon emissions are reduced quite significantly.
The whole process also takes place at milder conditions (Haber-Bosch needs 450°C and 200-times atmospheric pressure).
....And yet, if something more efficient can replace the Haber-Bosch process, it would lower the energy input of the production of one of the world's most important chemicals and lead to a notable reduction in global CO2 emissions.