By using renewable electricity to produce hydrogen via electrolysis, then combining it with atmospheric nitrogen in a modified Haber-Bosch reactor, producers can manufacture ammonia with up to 90% lower greenhouse gas emissions. This is a big deal because ammonia today is the world's second largest chemical commodity, used primarily to create fertilizer. Global production capacity of the colorless, pungent gas is expected to expand from around 235 million metric tons in 2019 to almost 290 million metric tons by 2030. Today, roughly half of the world's food production depends on fertilizers derived from ammonia, making the Haber-Bosch process one of the most. Green ammonia produced from renewable electricity is reshaping potassium nitrate manufacturing, offering a credible route to fertilizers with 80% lower carbon intensity.
