Ammonia has been made by the direct combination of the gases ... It is one of the by-products in the distillation of coal in gas works, and also in the manufacture of boneblack.

Fertilizer firm CF Industries reported a nearly 20% rise in its fourth-quarter profit on Wednesday, helped by higher ammonia ...

However, since these analyses were made with sophisticated ... the ammonia is destroyed and/or mixed with photochemical products faster than ammonia ice can form. Thus, the main cloud deck ...

Ammonia plays a vital ... rocket fuel to household cleaning products. But its production using traditional methods annually generate about 1.3% of man-made global carbon emissions.