On the "Global Warming"
Is the world getting warmer? Yes. 100% The datasets have been peer reviewed extensively, including a large study by MIT into how different datasets where normalised etc.
Is it CO2 that is causing it? Well, it fits, but the twist is when you warm water it releases CO2, when you cool it, it absorbs CO2, so is the earth warming due to CO2 rise, or is the CO2 rising because the earth is warming? Then again I don't think it matters as the two effects for a positive feed loop.
Is it main made CO2? This is where it gets a little more "bleeding edge". They have analysed the isotopic ratios of CO2 and found that a percentage of it is likely to be man made. They have given estimates as to what portion of warming may caused by that.
The issue with climate science is while there are hard facts such as CO2 traps heat, an awful lot of the sceince is written with words like, "Suggests", "Likely", "Indicates", "Could be", "might be", "may be".
The other issue when you get to the IPCC et al, is the horrid toxic mix of science and politics. Two things that never go well together, one is the pursuit of truth through experiment, the other is the pursuit of power through bullshit.