Carbon Dioxide Causes Global Warming (1932) (Jul, 1932)
Yup, global warming is a just a crazy, new theory.
Carbon Dioxide Heats the Earth
DR. E. O. HULBURT, physicist of the naval research laboratory, Washington, has found conclusive mathematical evidence that the earth’s temperature is being warmed by the increased amount of carbon dioxide present in the air. Smoke stacks emit huge volumes of this gas, which is also found in the breath and waste products of humans and animals.