CO2 does not warm the climate? Well that's not news, what CO2 does is to trap the warmth from elsewhere (ie: the Sun). Without the CO2 to trap the warmth the Earth would be too cold to inhabit. But, if we increase the concentration of CO2 it traps more heat and the planet warms. Quite simple for most of us.
Now, I am truly impressed by the above exchange from the dinosaurs amongst us, on the one hand we have frickenal stating:
But on the other hand we have TGM stating:
So which is the correct line from the denialsphere these days? I don't know, I don't take much notice of their rubbish.
The reality is that the Sun is not warming and here's a little demonstration of the problem with the arguments put forward to claim that the Sun is the cause of observed warming:
Aah, but now we have a claim that there is no warming, geez, I thought we left that crap behind years ago, here's the actual observations:
Here's temperature compared to solar activity:
Here's what it looks like for planet Earth:
It often isn't referred to as Global Warming any more, it is referred to as Global Heating. Extremes such as a temperature of 40C in the UK, floods in Pakistan, etc are now being shown to be more common and more extreme as a result of Global Heating.
Stick your heads in the sand if you like and go play on the denial sites, but the reality is that the science is conclusive - observed changes in the climate are being caused by human activity, specifically human activity which is altering the chemical composition of the atmosphere in particular the burning of fossil fuels.
Personally I'll trust the scientists on this, you know, the folk who have been researching these things for decades.
DS