Fourth of four educational films produced by Bell Laboratories and directed by Frank Capra
on the subjects of the sun, the human circulatory system, radioactivity and the weather. These films were used regularly in classrooms since they were well produced and Bell Laboratories would supply 16mm copies of the films to schools free of charge. See more
Even now, Man may be unwittingly changing the world's climate through the waste products of his civilization. Due to our release through factories and automobiles every year of more than six billion tons of carbon dioxide, which helps air absorb heat from the sun, our atmosphere seems to be getting warmer!