A trillion dollar storm could affect Earth, but you probably don't know about it
Space weather is a global issue. Unlike terrestrial weather events, like a hurricane, space weather has the potential to impact not only the United States, but wider geographic regions. These complex events can have significant economic consequences and have the potential to negatively affect numerous sectors, including communications, satellite and airline operations, manned space flights, navigation and surveying systems, as well as the electric power grid.
Richard Carrington observed a large flare on the Sun. Then, the next day, auroras could be seen in tropical latitudes and telegraph systems all over the world, starting to shock telegraph operators, operating while unplugged, and igniting the telegraph paperOther Carrington-scale or smaller-sized events have happened over the past century, but this is the statement that caught my eye in the essay:
in May 1921, a storm approximately as strong as the Carrington Event hit the Earth, causing similar damage to telegraph facilities. If the Carrington Event or the 1921 storm happened again today, the damage is estimated to be well over $1 trillion, as many millions of people would be without power or communications for months or even years.It is tempting to say that this is one scholar exaggerating things.
, “calculates regional electric field levels in the U.S. caused by disturbances in Earth’s magnetic field from geomagnetic storms.” Such near-real time information on geomagnetic storms like a CME is valuable for assessing impacts on the infrastructure associated with the electrical power grid. Take a moment and think about how you would function for weeks without electrical power, GPS, or air travel.
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