The Man Who Killed Millions and Saved Billions (Clean Version)

Published 2023-10-07
YES, THIS IS A REUPLOAD. The original was age-restricted and demonetized. To support the channel directly, you can buy Snatoms: or support on Patreon:

Fritz Haber is the scientist who arguably most transformed the world.
A huge thanks to Dan Charles for writing a fantastic biography of Fritz Haber, for taking the time to talk to us about it, and providing valuable feedback. This video would not be what it is without his contributions.

Thanks to Tom de Prinse from Explosions and Fire for helping us with the chemistry of explosives. If you like explosions and/or fire, you will love his channel.

Thanks to Michael Kuiper of CSIRO for the animation of the composition of air -    • Simulation of air  

Special thanks to Sonya Pemberton, Karl Kruszelnicki, Mary Dobbie, Olivia McRae, and the patreon supporters for giving us feedback on the earlier version of this video.


The primary reference used is Vaclav Smil’s excellent book, Enriching The Earth –
Smil, V. (2004). Enriching the earth: Fritz Haber, Carl Bosch, and the transformation of world food production. MIT press. –

Mastermind: The Rise and Fall of Fritz Haber, the Nobel Laureate Who Launched the Age of Chemical Warfare, by Dan Charles –

Stoltzenberg, D. (2004). Fritz Haber: Chemist, Nobel Laureate, German, Jew. Chemical Heritage Foundation. –

Postgate, J. R. (1982). The fundamentals of nitrogen fixation. CUP Archive. –

Miles, A. G. (1992). Biological nitrogen fixation. –

Friedrich, B., & Hoffmann, D. (2017). Clara Immerwahr: A life in the shadow of Fritz Haber. In One Hundred Years of Chemical Warfare: Research, Deployment, Consequences(pp. 45-67). Springer, Cham. –

Da Silva, G. (2020). What is ammonium nitrate, the chemical that exploded in Beirut. Sci Am, 5. –

Rodrigues, P., & Micael, J. (2021). The importance of guano birds to the Inca Empire and the first conservation measures implemented by humans. –

Allison, F. E. (1957). Nitrogen and soil fertility. Soil, the, 85-94. –

Crookes, W. (1898). Address of the President before the British Association for the Advancement of Science, Bristol, 1898. Science, 8(200), 561-575. –

Special thanks to Patreon supporters: RayJ Johnson, Brian Busbee, Jerome Barakos M.D., Amadeo Bee, Julian Lee, Inconcision, TTST, Balkrishna Heroor, Chris LaClair, Avi Yashchin, John H. Austin, Jr.,, Matthew Gonzalez, Eric Sexton, john kiehl, Diffbot, Gnare, Dave Kircher, Burt Humburg, Blake Byers, Dumky, Evgeny Skvortsov, Meekay, Bill Linder, Paul Peijzel, Josh Hibschman, Timothy O’Brien, Mac Malkawi, Michael Schneider, jim buckmaster, Juan Benet, Ruslan Khroma, Robert Blum, Richard Sundvall, Lee Redden, Vincent, Stephen Wilcox, Marinus Kuivenhoven, Michael Krugman, Cy 'kkm' K'Nelson, Sam Lutfi, Ron Neal

Written by Petr Lebedev, Derek Muller, Felicity Nelson and Kovi Rose
Edited by Trenton Oliver
Animation by Jakub Mistek, Fabio Albertelli, Ivy Tello, Alex Drakoulis, Nils Ramses Kullack, and Charlie Davies
SFX by Shaun Clifford
Filmed by Petr Lebedev, Derek Muller and Raquel Nuno
Photo of nitrogen deficiency in rice from
Additional video/photos supplied by Getty Images
Music from Epidemic Sound:

All Comments (21)
  • @HitsandHeadlines
    When YouTube age restricts veritasium you know they are messing up
  • @zacharyrice3997
    So frustrating to see educational creators punished for historical content. This happened, but YouTube's advertiser first mentality forces people to do things like this. Much love to you and the channel, keep it up!
  • @vlogbrotherdave
    This is one of my very favorite of your videos! I'm glad you reuploaded, you deserve payment for it and it should be seen by all
  • I’m a 71yo Veteran and my Grandfather fought in WW1 . He had told me some stories about the war and all the truly horrific things he saw. Damn! Why are humans always killing each other?
  • Not being allowed to talk about suicide in this way is a severe lapse in judgement. I believe it only makes things worse.
  • @Bhargav_Sarma
    Something is fundamentally wrong with YouTube, an educational video gets age restricted but a music video with literal NSFW content is allowed to be uploaded on the platform.
  • @lezilucero2599
    Thanks for re-uploading the video. I will watch this video again and again and share it with friends.
  • @Lyx21
    "Haber-Bosch, the great alliance, Where's the contradiction? Fed the world by ways of science, sinner or a saint? Father of Toxic gas and chemical warfare His dark creation has been revealed Flow over no man's land, a poisonous nightmare A deadly mist on the battlefield" -"Father" by Sabaton
  • @andresdsep
    Let's recount the events of this reupload, shall we? 1. Veritaseum releases a video about Fritz Haber, with only a passing comment about his wife's suicide (allegedly due to his work) 2. Community discusses video as a whole: Haber, fertiliser, weapons, morality, etc... 3. Youtube age-restricts and demonitises said video due to this passing comment 4. Veritaseum edits his video then re-uploads the censored version 5. Community proceeded to discuss ONLY the removed topic. The suicide. Top marks there YouTube.
  • @notfunny3397
    Can't believe YouTube would try to restrict this amazing video from being seen by kids
  • @jowhr99
    I love how cinematic and informative your channel are
  • @isoid
    This is one of the best videos on your channel imo, and it is great educational content. The fact that youtube is restricted this stuff is screwed up.
  • @ninjawhale03
    For those wondering the Bits that were taken out were at 16:00 - 17:26 of the original video (I think that's all, I could be wrong though), it regards Clara's suicide. In my personal opinion, this promotes leaving out events that should not be forgotten. I can sympathise more if these events were modern, but I personally feel it's different for more historical ones. There is also the issue of perhaps triggering people who may have trauma, but I feel like this isn't a reason to demonetise. Rather it's more of an incentive to release a clean version as well.
  • @alanmtzq
    your videos are fantastic! keep doing what you do, this type of content its what actually matters and turns internet in something valuable and useful
  • @kopexgaming
    pov you give villagers 8 stack of bread and tons of bed
  • @livyhouse5946
    I did not watch the original video when it came out, but based on the comments it’s seems the portion cut discussed suicide. As a person who has struggled with suicide and knows many others who have, CENSORSHIP IS NOT THE WAY TO HELP!!! One of the hardest things for those struggling with mental health is that there is negative stigma associated with it. People who struggle with this should not be shoved aside or told that they need to hide their pain. They need to be seen as real people struggling with real things, and education is a critical part of this. It hurts to see that YouTube feels the need to censor the suffering of people presented in an educational and historical way. The point of talking about suicide is that it is painful, and telling sufferers that they should hide their pain is FAR more dangerous than allowing this dialogue to take place. Mental health is real. Too many people have died of it to pretend it’s not. At the very least, we owe it to them and to those struggling now to encourage education with kindness and an open mind, not fear and shame. For those who may be struggling, please know that you are not the only one, and that struggling with mental health is okay. I know first hand how hard it is, and recovery is not an easy path. But it is worth every ounce of effort that you put in. Just knowing that you have made it this far tells me that you are more than strong enough to get through this. And thank you, for inspiring me to keep trying when I feel like giving up. Knowing that you are out there fighting gives me the courage to get through one more day. The world may not change much, but we will. And it will get easier in time. Until you can believe in yourself, I will believe in you. Please stay safe all, take care of yourselves! ❤️
  • It's so sad that the original video got age-restricted. This is one of my favorite Veritasium videos. It came out while I was still in my chemistry degree and I got so excited when Veritasium replied to my question about Hildebrant's flask. I'm glad he re-uploaded it for kids to be able to watch. I must say, I can see why very young children might not need to be exposed to topics of suicide, but to restrict it to 18 is a huge mistake on YouTube's part. With teen suicides being as common as they are, it is a topic people should discuss openly, not act as though it doesn't exist.
  • @Adecto
    The pace of your explanations and narrations is great, very pleasant to listen!
  • @kennyqwer
    Thank you for this reupload. Let this be my small contribution to your work. Thank you!