If climate change is in part due to our actions, it's worth noting, I think. I tried to read various and sundry about the models, it's not easy for me. They have to be based on past observations of things like "global T" (which is difficult to measure). The very simple calculation of how much that should increase with CO2 levels doesn't give one much of a factor, it's a tenth of a degree or so as I recall, but then they add "forcing factors" to "fit" the past history. Then they modify as needed with new data, it's always adjusting for more recent inputs, it has to be that way.
OK, fine, but that isn't really the best way to model a thing. There is no other way with climate. If a model is off a bit with new data, "they" adjust some forcing factor to correct it, so the models are "always right". Whether they are predictive or not is a clear concern.
Forcing factors include things like the impact of cloud cover, changes in albedo due to ice melting, ocean factors, stuff in the stratosphere, you name it. This is why we have 4-5-6-7 more or less accepted models, when there should be only one, ideally.
I am NOT a "denier", in the simplest sense, I'm just very dubious about these models. Things well could be WORSE.
And then we get back to my core point that 'we", humanity", aren't doing anything like near enough to temper this thing. And we can't.