It turns out that the solar magnetic field (which shields Earth from cosmic rays) may have a lot more to do with our climate than man-made CO2.
The thing that protects us from the Sun, is made by the Sun. We live in the 'flame' of the Sun, not 'outside' it, and the Solar/Mag field is the only thing that keeps our planet from looking like Mars, or possibly a roasted marshmellow.
The real problem we have, which Global Warming Alarmists ignore, is that the Magnetic Field of Earth is getting weaker.