There is one train of thought that suggests that the amount of CO2 going into the atmosphere is creating a greenhouse effect. Ie trapping heat from the sun in the earths atmosphere and warming the planet.
There is another train of thought that the sun goes trough natural cycles and cools down and heats up.
The fact is it’s far more complicated than that, the magnetosphere is powered by the sun and protects us from cosmic rays, cosmic rays increase the amount of cloud cover which in turn help blanket the earth and warm it up temporarily, but can equally bounce off the suns heat and eventually cool the planet.
Then there is the jet stream which acts like a barrier between the cold arctic/ Antarctic and the hotter central parts of the earth, this can slip down bringing cold air and arctic conditions with it. Like we saw in Saudi Arabia and Morocco. The jet stream also appears to be powered by the magnestosphere and possibly the thermosphere. However the links are not all substantiated. Or that well known.
The fact is that CO2 increase is a very simplified and ether crude way of determining global warming and there is a lot more at play. So in conclusion, no one really knows.
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