x2
Still.dont buy the doom and gloom stuff. The earths climate changes cyclically on a level we barely can comprehend. Im sure we have something to do with it changing a little quicker but i still doubt well have any way to do more harm to the earth than natural causes.
We humans are arrogant things, thinking we need to stop all natures changes, cant let animals go extinct that may have otherwise, cant let climate change that may have otherwise,..... if we werent around this shit would still happen. Maybe not as drastically but the climate would still change, soecies would still did out, other species would evolve and take their place..... its nature.
This is not true though, climatologists understand it really well, this is why I think you have a issue with it, you assume that they only know as much as you for some reason, I am sure you don't know how your cell phone works but a physicist could explain it in great detail.
It's us, the natural cycle has been broken, we broke it, just like we broke evolution, infections etc. we are circumventing all natrual processes, hence this in not natural. We are altering the natural world, dramatically, no other species does this. It is unprecendented.