The Omnivore's Dilemma: A Natural History of Four Meals

by Michael Pollan

But the reason for his obscurity has less to do with the importance of his work than the ugly twist of his biography, which recalls the dubious links between modern warfare and industrial agriculture. During World War I, Haber threw himself into the German war effort, and his chemistry kept alive Germany’s hopes for victory. After Britain choked off Germany’s supply of nitrates from Chilean mines, an essential ingredient in the manufacture of explosives, Haber’s technology allowed Germany to continue making bombs from synthetic nitrate. Later, as the war became mired in the trenches of France, Haber put his genius for chemistry to work developing poison gases—ammonia, then chlorine. (He subsequently developed Zyklon B, the gas used in Hitler’s concentration camps.) On April 22, 1915, Smil writes, Haber was “on the front lines directing the first gas attack in military history.” His “triumphant” return to Berlin was ruined a few days later when his wife, a fellow chemist sickened by her husband’s contribution to the war effort, used Haber’s army pistol to kill herself. Though Haber later converted to Christianity, his Jewish background forced him to flee Nazi Germany in the thirties; he died, broken, in a Basel hotel room in 1934. Perhaps because the history of science gets written by the victors, Fritz Haber’s story has been all but written out of the twentieth century. Not even a plaque marks the site of his great discovery at the University of Karlsruhe.