There has for some time been an ongoing argument about whether or not Schumann's Resonance was increasing in frequency. Greg Braden has been oft quoted with saying that it was. Where Universities and Montauk alike keep saying that it is as constant as the day it was born. Well, apparently BOTH may be correct! We ran across the following today that may provide light on the answer:

The Schumann resonance is not increasing in frequency, and in fact already has multiple higher frequency spectral lines at the frequencies predicted by basic quantum physics. The fundamental frequency of 7.8 Hz being determined by the size of the Earth, the speed of light, and nothing else, with the higher frequency spectral lines in addition being determined by the size of Plank's constant.... None of which are changing.

...BUT...
The amplitude (i.e. intensity) of the Schumann resonance is, however, not constant, and appears to be extremely dependent upon tropical (and hence global) temperature. Indeed preliminary results seem to indicate that a mere one degree increase in temperature seems to be correlated with a doubling of the Schumann resonance. This could not be more significant.

http://www.fusionanomaly.net/schumannresonance.html