fertiliser

Crops in a field

Chemical engineers at UNSW Sydney and University of Sydney have found a way to make ‘green’ ammonia from air, water and renewable electricity that does not require the high temperatures, high pressure and huge infrastructure currently needed to produce this essential compound.

A tank of ammonia at a chemical plant with blue sky in background.

Ammonia has sustained humanity since the early 20th century, but its production leaves a huge carbon footprint. Now researchers have found a way to make it 100 per cent renewable.