What climatologists have done is nothing short of Chicken Little. "The Sky is falling! The Sky is falling!" Why? Because they have a dog in the fight. If you want to make money convince the world there is a global catastrophe on the horizon and you are just the group to solve it... provided the pay is sufficient.
It is no coincidence these modern-day snake oil salesman only show the data back to about 1941. 1941 was the trough of one of the higher magnitude near term cycles... the 114 year cycle. 57 years later (1998) was the predicted peak and sure enough we saw peak temperatures around that time. Obscured somewhat by phases from the combination of sine waves, but clearly proved out and they were well aware of when to expect the peak. It is equivalent to someone showing you data back to the previous winter at the peak of summer and declaring, "If these temperatures keep rising like this we are all doomed". Incidentally, this is the same trough which brought about agricultural strife and likely two major military conflicts. Both Hitler and Napolean discovered just how severe Russia could get during this trough.
It became evident even the most influential climatologists didn't believe in global warming when the climatologists stirring up all the hubbub at the UN had their emails hacked. Examining their emails one in particular stands out in which they were discussing the need to change the terminology from Global Warming to Climate Change after 1998. Clear evidence it was a scam and they knew it better than anyone. In these emails they were discussing what they could do to get Gore elected as "after the election when temperatures begin to fall for prolonged periods we will have lost our window of opportunity to obtain funding from the US"... their target. They hoped to receive $2 Trillion in funding for climate research. Climatologists didn't used to get paid crap. Now it is quite lucrative due to the fact the sky is falling!