That there is a clear relationship between atmospheric and biological electrical activity is in itself interesting. And also it may extrapolate to an even larger network of many organisms reacting together to the atmosphere and each other.
The following article describes medical and other ramifications of these links:
Most electrical activity in vertebrates and invertebrates occurs at extremely low frequencies, and the origin — and medical potential — of these frequencies have eluded scientists. Now a Tel Aviv University study provides evidence for a direct link between electrical fields in the atmosphere and those found in living organisms, including humans.
The study’s findings may change established notions about electrical activity in living organisms, paving the way for revolutionary, new medical treatments. Illnesses such as epilepsy and Parkinson’s are related to abnormalities in the electrical activity of the body. (Electrical Activity in Living Organisms Mirrors Electrical Fields in Atmosphere)
The study can be found here: Natural ELF fields in the atmosphere and in living organisms.