Katsuko Saruhashi Scientist
Katsuko Saruhashi (猿橋 勝子, Saruhashi Katsuko, March 22, 1920 – September 29, 2007) was a geochemist who made some of the first measurements of carbon dioxide (CO2) levels in seawater and subsequently showed the evidence in seawater and the atmosphere of the dangers of radioactive fallout.