The Haber process is an industrial method used to synthesize ammonia from nitrogen and hydrogen gases. It involves reacting nitrogen, obtained from the air, with hydrogen, typically derived from natural gas, under high pressure and temperature in the presence of a catalyst, usually iron. This process is crucial for producing fertilizers, which are essential for modern agriculture. Developed by Fritz Haber and Carl Bosch in the early 20th century, the Haber process revolutionized the production of ammonia, making it more efficient and cost-effective. This innovation significantly increased food production worldwide, supporting the growing global population and transforming agricultural practices.