Emma Lovell

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.

Coal-fired power plant

Making catalysts to convert waste carbon dioxide into useful industrial products has been expensive and complicated – until now. UNSW engineers show it’s as easy as playing with Lego.