Who`s ?
As far as I can remember, and I`m pasted fifty (shh) the seasons are on schedule, plants are coming up on schedule, veg times may be tweeked, flowering times are in the same time periods, the tide still goes out and in twice a day, the poles are still cold and white, the N and S Hemispheres are not retreating or advancing, weather patterns are fluctuating here and there, the prevailing winds are still blowing the same. ocean currents are still doing the same on time, and on and on,....
... I don`t see your global warming so how can I tack a main cause to it.
The only place what you say fits, is in the scientific consensus. for the time being. The only place rise in the GST theory works, is in those who believe the GST matters.