angle is they blame it ALL on the actions of humans since the industrial revolution. Now, I'm not saying the industrial revolution hasn't had an effect, but it isn't the main factor. The problem is they're using the records of the last 200 years or so because that's all we've got really good records of done on a daily basis. What they miss is the fact is not so much a new change, but the establishment of a system to record the change, and that's all.
We have lots of records and evidence that goes back much further. The average temperature during the time of Julius Caesar was higher than it is now, there are records to prove that. Heck, there's archaeological evidence that what we call the sahara was once a huge tropical forest, yet it's been desert for all of human recorded time, many thousands of years. All of human endeavour has been part of a warming from an ice age, that started before we humans could do more than grunt. Yet all this evidence is ignored by those who can see an opportunity to use global warming to draw attention from their political stuff ups, and they're aided by those who see it as a chance to jump on a gravy boat.
Human Global Warming is only faith for a few who are being taxed on this, those doing the pushing and taxing are in it for personal aggrandisement and money.