What I set out is just the content of the first section of the SPM – the section “HUMAN AND NATURAL DRIVERS OF CLIMATE CHANGE”, from p 1 to about 5.5. You will find nothing there about the temp record. That is the AGW case.
The next section is “DIRECT OBSERVATIONS OF RECENT CLIMATE CHANGE”. These are the observations which help to affirm the theory, and of course, make more real the consequences to us. I think they do that. But if you don’t believe it, then AGW lacks that affirmation (at present). Doesn’t mean it’s wrong – just that we don’t have the data.
Then there is the section “UNDERSTANDING AND ATTRIBUTING CLIMATE CHANGE”. This makes the connection of the observations to the theory. Of course, if you deny the observations, then this means nothing. It affirms nothing and refutes nothing.
Then there are the PROJECTIONS. They are deductions from the AGW theory which can’t yet be tested against the record.
That’s the SPM.
I think carbon taxes are justified on present knowledge. Just as I think taxes to support the military are justified even though there are no currently proven threats. Just because a risk is uncertain doesn’t mean it should be ignored.