I'm on the fence so far as climate change being primarily caused by mankind. There's too many variables.
There are too many variables, I agree. This is why I watched many climate change docos, and many anti climate change docos
The human intervention is a constant. Yes, the Earth will recover. In decades or tens of thousands of years when we are gone. Or we cold reduce emissions, target green tech. But that doesn't work selfishly and economically right now. Oil companies, votes, GDP. Th human race is unbelievably intelligent, but just as short sighted and stupid. Imagine if a cure came next week which gives us all a 300 year lifespan. THEN IT WOULD CHANGE
First off I personally have absolutely no doubt global warming is caused by man ... entirely ... in fact over 100%, as we should have been in a slight natural cooling trend. Man's contribution to CO2 levels is proven by carbon dating since fossilised carbon has less of the relevant C13 isotope. The accumulated CO2 (since the industrial revolution) matches what is expected from the burnt fuels (chemically) as does the subsequent change in O2 needed for combustion.
Although some CO2 gets absorbed by the oceans, additional atmospheric CO2 (a greenhouse gas) causes added heating due to absorbing some parts of the infrared emissions spectrum from the Earth's warm surface. The Earth balances the small drop in heat loss by raising the surface temperature accordingly to increase radiative emissions. Because radiative heat follows a 4th power function with temperature the negative feedback is strong, but reaching thermal equilibrium takes at least a decade. If we stopped burning all FFs tomorrow, we would need a decade plus to see temps stabilise.
By measuring the average global surface temperature we know that there is a slow warming trend over decades, which has long been termed Global Warming. That does not in any way imply there is warming in any local area nor does it have anything to do with climate or weather. It's only used to characterise a change in surface heating which has to be explained somehow, and increasing CO2 levels fit the observations far better than any other possibility.
Global warming causes Climate Change, which is not unlike turning up the heat under a pot of boiling water, causing a higher level of chaotic turbulence. Climate Change means "change". It does not imply warming or cooling in any local areas. However, there is substantial statistical evidence that some extreme weather events are the result of what climate change might do. The cold weather over North America right now absolutely reeks of being amplified by low Arctic sea ice.
I've never seen a "anti"climate change doco from a reputable source. The few I've stumbled on accidentally are either from crackpots (Lord Monckton) or are politically-motivated, or from an oil industry-motivated think tank. If it isn't a lecture at a well-known university by a well-known climate scientist I wouldn't waste my time. I've watched nearly a hundred and the presentations are very consistent. This one below covers most or all of what I mentioned above. It's long and might be boring in parts but what do you expect?
As for the other comments above, there isn't enough time in the evening to answer everything but note humans are really pretty stupid. We know damn well what is happening and have been slow to react. Given that CO2 is the lowest energy form of carbon and is a gas, there is unlikely to be any technology developed that could scale up to remove and sequester the 40 G tonnes a year required, never mind bring the levels down. See Dr. James Hansen's comments for that one. It is relatively easier to stop using fossil fuels entirely than hope a technology comes along that no one currently has any idea how to do. If you know, sign up for your Nobel Prize in Physics now.
The Earth will take many millenia, perhaps hundreds, to bring back the CO2 levels naturally to an ideal 180 to 250 ppm, just as it has in the past. But once methane-based positive feedbacks cut loose we will likely lose any control we might have. That is how the Earth has behaved in the past, basically like a bistable flip-flop, bouncing between hot and cold.