That reply doesn't address my original comment, but the IPCC do say just that -- although not in that paragraph. You will find statements all over the IPCC abou

That reply doesn't address my original comment, but the IPCC do say just that -- although not in that paragraph. You will find statements all over the IPCC about how climate change is nearly certain to be caused by people, and in particular, by people burning fossil fuels. If you go to the link I posted and search for "fossil" you will that in those notes. You can also read the official IPCC reports yourself to get a clearer idea. Maybe I'm misunderstanding you, but there's no anthropic principle at work. It would be perfectly fine to say (although it would not be true) that "plasma fluctuations on the surface of the sun are extremely likely to be the dominant cause of observed warming since the mid century."