Too bad for your point that science isn't about opinion. It's about measured facts.
Ice core measurements show tempretures and co2 concentration go up and down by small amounts all through time and have been going up for about 150 years by an amount no different from what they always have done and over a time period no different either.
There are a huge number of inputs and reducers of co2. The inputs and reducers of co2 are known to be hugely variable. There are no measurements of the variations of all the inputs involved in co2 concentration and tempreture done in fine enough detail to distinguish the effect of any input as small, reletive to all other inputs as variable as they are, as human input co2.
In answer to another issue you raised about computer models. The issue with them is easy to understand. Since all those variables are not being measured in fine detail for input to the computer they are simply made up as if they were measured. They're accurate to some degre based on some scientific theory governing them. But that's not the same as a measurement. That's what's meant when they are "tweeked". They start with a set of initial conditions of climate based on some date and tweek the made up inputs until the simulations give a result for some later date that maches the conditions at that date. But if you apply those same tweeks with a different starting date or ending date you don't get a match. It's a computerized method, a technobabble method, of pulling a result out of your hat. Naturally it matches the preordained conclusion.
You can get as far into the weeds as you want about the opinions, political and economic reasons for them and pressures applied to force some scientists to agree with them.
But science is about measurement not opinion. Entertainment is about opinion. Science may sometimes be entertaining but it's not about entertainment. In the present state of the art the basic measurements are so neglected that any opinion other than that the measurements have not been done in enough detail to reach a conclusion about human co2 input is scientificly worthless.