I'll go out on limb and say that virtually no one posting here is qualified on their own to come to any conclusions about whether the earth is warming or not. That's not to say they aren't smart people, just that researching long term climate patterns and their causes is not their vocation and not something they're trained for. Lots of people can regurgitate information they found somewhere else. They can also do some analysis on some subset of data and come to some conclusions which may or may not be correct.
Climate modeling is complex and at some point you have to rely on the experts. For example, let say you're not feeling well and haven't been for months. In fact, it's getting worse. You try to diagnose and treat it yourself but it's not working so you go to the doctor who sends you to a specialist. The specialist says you've got some terminal illness. There is a treatment but it's not guaranteed to work and the treatment itself is going to make you feel worse for awhile. That sucks, but doctors make mistakes right? So you get a second opinion. That doctor agrees with the first. In fact you end up seeing 100 of them and all but one agree with the diagnosis and the treatment. Which one are you going to believe?
When it comes to climate science, maybe 90 some percent of scientists world wide are on the take and just perpetuating the climate change myth in order to keep their funding sources in tact. Or just maybe, actually trying to lower CO2 emissions world wide is not trivial and there's a number of influential people who stand to lose big if we do it. It means some lucrative industries (fossil fuel production) would have to be dramatically scaled back. It might even mean lifestyle changes which are never easy and are a tough sell. There are a whole lot of built in reasons for people not wanting to believe it.
" In 1960, in a poll organised by the American Cancer Society, only a third of all US doctors agreed that cigarette smoking should be considered ‘a major cause of lung cancer’. This same poll revealed that 43% of all American doctors were still smoking cigarettes on a regular basis, with occasional users accounting for another 5%. With half of all doctors smoking, it should come as no surprise that most Americans remained unconvinced of life-threatening harms from the habit."
So even doctors are fallible and inclined not to believe things that would suggest they need to change. Yes, the climate scientists could be just parroting each other, participating in group think, and trying to keep their funding alive. I don't believe that is what's really going on.