IGY films online

Thirteen films about the International Geophysical Year of 1957–58 are now online thanks to a team from the University of Colorado and the US National Academy of Sciences. The 29 minute films include: The Inconstant Air, which describes studies of the atmosphere and the greenhouse effect; The Flaming Sky, which describes research on auroras; and The Secrets of the Ice, which describes research on glaciers and ice caps and their role in the Earth system.