Before 2020 i would say like many others here, so no vote sorry
Based on the whole myriad of feedbacks of course and things mentioned earlier, but also based on what we do NOT know and understand.
As Shakova mentioned before:"How can people discuss geoengineering in context to climate when we do not understand climate yet? "
Her own research area is minute when you think about it...
But also there is the "X-factor", for lack of a better term.
What effect will the death of every forest biome, kelp forest, reefs etc have?
What else are we forgetting as AGW smacks us in the face regularly with unexpectedly bad news?
I would mention the utter stupidity and addiction of industrial society for one:
This is easy to see in my city in The Netherlands where a full scale attack on nature has been launched.
Whatever needs to happen for climate and nature, they do the opposite.
It does not matter our air is the filthiest in Europe and there is hardly a tree left standing.
It does not matter how many highly endangered species my own research turns up, they destroy them faster and slander, hack or threaten us with corruption winning all the way.
I would therefore also argue that "Anthropocene global warming" is a ridiculous term.
Do we study and monitor climate change since the arrival of hominids or even Homo sapiens?
NO, we look at the industrial age and for good reason.
Clearly it should be named Industrial Global Warming.
Besides, the brave non-industrialized humans deserve the respect not being included in that blame game anyway, we are screwed...