Climatologists....
..are the ones studying this stuff.
To characterise them as people having "a belief the earth is constant, stable and predictable" is the opposite of the truth.
They are NOT the ones trying to paint a picture based on tiny data sets and they are NOT the ones trying to draw conclusions based on cherry-picked data.
You want to see some real climate-related dishonesty - go and watch that crank "Global Warming Swindle" (or what's left of it after the lawyers have forced them to remove so many lies and misrepresentations).
The bottom line is that CO2 levels went up from 280ppm before the industrial revolution to 330ppm around 1980, then since then have gone up again to 380ppm.
This *rate* of this increase is unprecedented, hence the scientific curiosity about it.
Analysis of the Carbon isotopes reveals the new CO2 is organic in origin: ie burning of organic-origin carbon has put massive amounts of CO2 into the atmosphere.
The anthropogenic nature of this CO2 increase is therefore an established fact.
A similar anthropogenic climate effect was observed in the post-war years when industrial-released aerosols caused solar clouding (and cooling).
What does it all really mean? Who knows?
Scientists measure, hypothesise, test, etc.... to continually advance our understanding of what's going to happen.
Here in Australia, for example, they are currently conducting experiments in growing eucalyptus trees in high-concentration CO2 environments - the results are a 30% INCREASE in the speed of carbon-uptake in this trees.
Sounds pretty good - can we look forward to our tomato plants growing faster, stronger and fruitier than ever before?
We'll just keep on experimenting...
MEANWHILE, the denialists talk shit, just like the creationidiots and the anti-immunisation looneys.