Geomagnetic storms are temporary disturbances of Earth's magnetosphere. They are caused by solar wind shock waves or clouds of magnetic field interacting with the Earth's magnetic field. A severe geomagnetic storm could potentially shut down power grids on a continental scale for months (Open Philanthropy 2015).


Open Philanthropy (2015) Geomagnetic storms, Open Philanthropy, July.

Roodman, David (2015a) Geomagnetic storms: using extreme value theory to gauge the risk, Open Philanthropy, July 13....

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