Hamm-Brücher was born in Essen, Germany and grew up with four siblings in a non-political, bourgeois family.
She received her doctorate in chemistry in 1945 and began working as a science journalist for the Neue Zeitung, an American-run newspaper, in what was then still occupied Germany.
[2] In 2002, Hamm-Brücher left the Free Democratic Party after a controversy with Jürgen Möllemann about his election campaign that harshly criticized Ariel Sharon, then Prime Minister of Israel.
[3] She served as a Green Party delegate to the Federal Convention for the purpose of electing the President of Germany in 2012.
[5] Hamm-Brücher authored several books and articles, often focussing on the state of modern democracy and the relationship between politics and ethical questions.