By Vicki Zwart Two of the American Geophysical Union’s most prominent past members were among the masterminds behind the International Geophysical Year (IGY), “an unprecedented study of our physical environment.” According to former Union president James Van Allen in Eos, Vol. 64, no. 50, at a dinner party he hosted in April of 1950, Lloyd Berkner, a leading expert on ionospheric physics (and a former AGU president as well), asked…
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International Geophysical Year (IGY): “An Unprecedented Study of Our Physical Environment”
![International Geophysical Year (IGY): “An Unprecedented Study of Our Physical Environment”](https://centennial.agu.org/files/2018/12/1955_july_igy_logo_0.jpg)