What are the ways to protect against EMP and can they be used to protect storage facilities, vehicles and indoor hydroponic farms ?
The cause of the EMP is a meteorite crash around the same as what hit the dinosaurs.
The temperature is going to go over 100°.
The protections should be effective against other disasters that would cause EMP to happen to justify the money if the the ways of protection are very costly (a giant meteor strike isn't something that happen often enough to dump public money that could be used elsewhere)
EMP isn't the most noticeable effect when tsunamis are destroying coastals cities and that the air at the surface is hot enough to kill people however once the ash create a volcanic winter having the means to feed, light and heat the shelter sound really important.