alt Hacker News> But those are unreliable as well...
Can you tell me how many research papers on this specific subject you have read, before coming to that conclusion?
Hint: chances are you're correct (!). Size of the error bars, timeframe(s) talked about, how data was gathered, how results were processed etc, that is what such papers are about. Educate yourself! (Wikipedia is usually a good start)
None. It goes against my common sense. That is why I am asking what accuracy can this method give. I am asking that to people who are already seemingly convinced that the methods listed (fossil records, ice-cores) can be accurate..