Change is its natural state.
The human effect on climate is one aspect of change.
Change is its natural state until you look at CO2 emissions, global temperature rises, forest fire incidences, glacial levels, etc. etc. from the industrial era on. It's an extremely significant and extremely unnatural effect we have had on our climate. How can you possibly say otherwise, or have such a defeatist attitude? Mapping Yellowstone? Fuck off, dude. Any learnings or mapping will happen concurrently with other changes around the world and it will be too late to do much about it at that point.
We are already experiencing it. Go step on a glacier anywhere in Washington.