I like Pat Michaels at CATO for the less technical discussions. Judy Curry has good discussion but those are very technical. But if you are talking about raw measurements like CO2 readings, there is no reason not to trust the government. They have validated the science of measuring CO2 for at least 40 years. I also use Energy Information Administration for CO2 produced, again because it is more or less raw data with a long scientific pedigree.
OTOH I do not trust government sites for models or model outputs or other deriviative or predictive information. Probably polluted with politics.