References:

1. Appl, M. (2011). Ammonia, 1. Introduction. In Ullmann's Encyclopedia of Industrial Chemistry, (Ed.). Wiley-VCH Verlag GmbH & Co.                        10.1002/14356007.

2. Deakin, J. De-carbonising Ammonia: alternatives to the Haber-Bosch process?, STEM Learning, Issue 40: 

            https://catalyst-magazine.org/articles/de-carbonising-ammonia-alternatives-to-the-haber-bosch-process.

3. Erisman, J. W., Sutton, M. A., Galloway, J., Klimont, Z., & Winiwarter, W. (2008, October 1). How a century of ammonia synthesis changed               the world. Nature Geoscience, 1(10), 636-639. 10.1038/ngeo325.

4. IRENA and AEA. (2022). Innovation Outlook: Renewable Ammonia, page 11.                                                                                                                        https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2022/May/IRENA_Innovation_Outlook_Ammonia_2022.pdf

5. Karlsruhe Institute of Technology. (2025, June 16). 200 Years of Pioneering Spirit: Scientific Progress and Ethical Responsibility. KIT -               KIT - Media - News - News 2025 - 200 Years of Pioneering Spirit: Scientific Progress and Ethical Responsibility. Retrieved November             23, 2025, from https://www.kit.edu/kit/english/202506-200-years-of-pioneering-spirit-scientific-progress-and-ethical-                                       responsibility.php

6. Lehigh University. (2018, July 9). Electrochemically-produced ammonia could revolutionize food production. Phys.org.                                             https://phys.org/news/2018-07-electrochemically-produced-ammonia-revolutionize-food-production.html

7. Moseley, H. G. J. (1913). The high-frequency spectra of the elements. London, Edinburgh, and Dublin Philosophical Magazine and                      Journal of Science, 26(156), 1024-1034. 10.1080/14786441308635052

8. Philip, & Morrison, P. (2001, July-August). From Fertile MInds. American Scientist, 89(4), 1. Wayback Machine - Internet Archive.                           Retrieved Nov. 15, 2025, from                                                                                                                                                                                                    https://web.archive.org/web/20120702093415/http://www.americanscientist.org/bookshelf/pub/from-fertile-minds

9. Smil, V. (1999, July 1). Detonator of the population explosion. Nature, 400(6743), 415. Nature. 10.1038/22672

            Smil, V. (2004). Enriching the Earth: Fritz Haber, Carl Bosch, and the Transformation of World Food Production. MIT Press.                              10.2307/3985938

10. Smil, V. (2015, June 21). Nitrogen cycle and world food production. World agriculture, 2, 10. Wayback Machine - Internet Archive.                          Retrieved November 16, 2025, from https://web.archive.org/web/20150621000149/http://www.vaclavsmil.com/wp-                                        content/uploads/docs/smil-article-worldagriculture.pdf

11. Smith, R. (1994). Conquering Chemistry. McGraw-Hill. https://books.google.ca/books/about/Conquering_Chemistry.html?                                     id=s6AoAAAACAAJ&redir_esc=y

12. Vandermeer, J. (2011). The Ecology of Agroecosystems (3rd ed.). Jones & Bartlett Learning. https://books.google.com/books?                           id=AFRQSuQGHiIC&pg=PA149

13. Venkateswaran, T. V. (2024, October 15). How did the Haber-Bosch process change the world? The Hindu. Retrieved November 24,                      2025, from https://www.thehindu.com/sci-tech/energy-and-environment/how-did-the-haber-bosch-process-change-the-                                  world/article68752579.ece

14. Williams, T. I. (1982). A short history of twentieth-century technology c. 1900-c. 1950. Clarendon Press. https://archive.org/details/B-                001-000-137/page/n117/mode/2up

15. Zumdahl, S. S. (2025, Oct. 29). Ammonia. Encyclopedia Britannica. Retrieved October 31, 2025, from                                                                           https://www.britannica.com/science/ammonia#ref277711