The “actual facts” as you put it are that some combination of influences drove the temperature up quite dramatically since 1970. The CO2 went up dramatically in that period, and we’ve known for a century that increasing CO2 drives up the temperature, and moreover we understand the mechanism by which it does so in considerable detail.
Hence to rule out CO2 as the culprit you would need to propose an alternative cause with a comparably plausible mechanism. Your candidate?