I am generally ignorant of any of the sciences which are not social so forgive me if this is a stupid question I understand that the vast majority of scientists accept that global warming is a fact, but there seems to be a somewhat active "denier group" which seems to attempt to refute the fact that global warming is even happening. How can there be ANY dispute over this subject? Whilst it seems as though the reason that this is happening could theoretically up for a large deal of debate. t would seem as though the question of whether or not global warming is actually occurring should take about five minutes to determine, I would assume that there is AT LEAST data upon the general temperature of the last 25 years so isn't an upward trent or lack thereof utterly undeniable? So why is there any debate as to THE FACT of global warming? Rather than just the reason. Or is there no debate whatsoever on the fact and I am just misinterpreting the arguments of those who deny that the cause of global warming is human? Thanks.