More than likely it is a political confrontation between those who want to conserve the Earth's resources and those who want to liberally use those resources. And that, in an odd sort of way, is a joke in itself. For it is the liberals who want to conserve, and it's the conservatives who want to liberate the resources.
But the question remains: Is MANKIND creating the warming trend? I have gathered what I could find on the internet, trying to be careful to get at least two perspectives from different camps. That, I felt, would keep me from overwhelming any one idea as paramount.
First let's look at the pendulous swing. Note how the temperature is near symmetrical swing, first cool, then warm.
This is a natural occurrence. In the graph above, even with the shift upwards, we continue to see a back and forth reading. Gives it a saw-like edge, and we will be seeing that same edge, only closer as it is advanced to the present.
That's because as the Earth warms, it creates the situation for it to cool. And then, as it cools, the situation is created to make it warm. Not just seasonally, mind you, but rather over several years...sometimes scores of years. And, on at least two periods, centuries.Note the two circles central in the graph. The peak of warmth was followed by a near symmetrical cool period during both. The first, the cold following the heated period dipped to the most extreme temperature found, while the length of the warming on the second was followed by a twice dipped temperature reading that, while not as cold as the first, was ample to create glaciers, some of which exist today, though fast melting...
No sense in making anything of the year break at the far right, as the time period is greatly distorted in comparison.
My theory is that, while mankind did not cause the global warming, the effect is being artificially extended, and, because of the extension, a severe cold will follow, as ell as, then, an even longer warm period following that. In other words, our affecting the environment will create an ever increasing echo, possibly to the detriment of life.