When listening to the lightning storms in your area on a standard AM radio, you will hear a sound like bacon frying and this is the electromagnetic energy that the storm is generating. Plants react to this energy and may show vigorous growth during lightning seasons.
There is a time and place for electromagnetic shielding and I regard it as a last resort due to the long term biological problems that I have observed with it over the years in plant growth experiments.
One of the problems with climate change, global warming and global air pollution is that it may change the frequency and intensity of electrical storm activity. Too much lightning activity may cause excessive mating, aggression, fatigue, illness and disease to occur. Too little may turn off the animal and plant breeding cycles.