There is a lot of historical data out there and available to all that take the time to find and review it, that indicates that Earth goes through various cycles of climate change. One of the most interesting to me is the Vostok Ice Cores. See chart at https://upload.wikimedia.org/wikipedia/c...lation.jpg
The data indicates that CO2 levels followed the rise in temperatures, not the other way around as mainstream government and media would have us believe.
The data also indicates that Earth has been hotter and had more CO2 in the past and not influenced by man.
Logic then would indicate that there must be other causes that affect climate change, especially in the long (in man time) periods of roughly every 100,000 years or so. Much research indicates that the sun is the main driving factor in climate change.
There are many sources of CO2 other than man including volcanic, insects, especially termites, animals and probably the largest of them all, the ocean. As the ocean warms, it gives off CO2. This is probably a prime reason why rising temperatures preceed rising CO2 levels.
When the sun is in its quiet periods, ocean temps fall and if it stays quiet for 30 to 40 years, Earth can enter an Ice Age, small or large. As the Vostok chart below shows, Earth seems to have an ice age about every 80,000 to 100,000 years, at least according to that 400,000 year sample.
Of course, everyone is encouraged to do their own research.
It is not accurate to say that Man caused global warming is settled science. Nor is it accurate to say that almost all scientists in the field agree with that.
If one looks at the data and information available, as I have for the past 25 years, the logical conclusions are that the Sun drives climate change, climate change occurs in cycles, large and small in Earth terms, man caused CO2 is a very minor contributor to changes in atmospheric CO2, and the real reason governments around the world push the climate change agenda is both political and financial. Lots of money to be syphoned out of the people's pockets with carbon taxes. Also, let's not forget the CO2 is plant food and part of the cycle that creates oxygen. At least, that's the way it looks from here.