Genoves says:
"After posting many times, I have yet to have anyone of the hysterical Goristas explain to me why the GLOBAL TEMPERATURE went up by at least 0.4 degrees C from 1910 to 1940 and then stayed constant from 1940 to 1980."
Of course "hysterical Goristas" haven't told you anything, since they don't exist, but are a fictional creation as a strawman opponent by the rabid denialists.
However you have been told repeatedly by those familiar with the science that supports global warming that it was due to anthropogenic aerosols, as evidenced, among other things, by observed dimming of the levels of solar brightness because of known emissions and their presence in the atmosphere.
A recent take onthis:
"CO2 is not the only factor controlling global temperatures. The sun is the major driver of climate but solar levels been steady for the past 50 years. Another significant factor is aerosols (tiny particles suspended in the air) that have a cooling effect by reflecting sunlight (this is called global dimming). The more aerosols in the atmosphere, the less sunlight reaches the Earth's surface.
Surface measurements of solar radiation found a global trend of dimming from 1960 which reversed around 1985. From that point, there has been a general trend of brightening. As solar output has been steady over this period, this is consistent with measurements of aerosol levels that have fallen since the early 80's. Note - this doesn't explain current warming but does explain why CO2 warming has been masked from 1950 to 1980.
Satellite measurements of solar radiation at the Earth's surface has detected a long term increase in surface brightness from 1983 to 2001. Combined with the fact that solar levels have been level since the 50's, this indicates aerosol levels have been falling"
http://www.skepticalscience.com/global-cooling-mid-20th-century.htm
As we've previously told you, you might also check out the IPCC's TAR
You've been given the explanation since you were massagato back on abuzz, and at least once when you were somebody, probably BersnardR, here on a2k. And you don't remember any of it? So sorry to hear you're suffering from early onset Alzheimer's