It's a chaotic system so I think no one can really understand or predict with high confidence. That's what the math around chaos theory says anyhow. Humans tend to overestimate their abilities and impact, that's what psychology says

There are long-term, short-term natural processes as well as human processes impacting it. Even the sun has cycles which impact Earth's climate on scales we don't fully understand.

I definitely think we are not approaching ways to keep our current (preferred) climate intact the best we can. The focus seems to be more on low-impact, feel-good solutions rather than the difficult, high-impact solutions. I for one would like to see a lot more money going into R&D for H2O desalination and CO2 sequestration.

The climate changes daily and yearly because the sun's got daily and yearly cycles. But the sun's got 100 or so years cycles, too. So the climate changes slightly over those periods, too. Period.