It’s ironic that Fritz Haber is responsible for the lives of half the population in the world today. You and I likely wouldn’t be alive if not for him and yet most people have never heard his name. The world was experiencing a nitrogen shortage when he figured out how to extract nitrogen from air . As your all aware the atmosphere is roughly 78% nitrogen. Fritz Haber also had a dark side and killed many using chemical warfare in WWI. Read the articles I’ve known this story many years and it’s a lot to think about. From my perspective nitrogen = food since I grew up in the bread basket we see it every year produce the worlds grains which make the breads that feeds everyone