L. David Roper
http://www.roperld.com/personal/RoperLDavid.htm
2 July, 2016
Helium is used to cool superconducting magnets. The graph below shows the helium extraction data for the United States and the world and two Verhulst functions fits to extraction data in order to extrapolate into the future.
The total amount extracted is 7.83x106 m3. There may be another extraction peak in the future.
The total amount extracted is 24.02x106 m3. There may be another extraction peak in the future.