It appears to me like the predictions made about climate change is being born out by what has happened over the last few decades and is happening now; The dry parts of the world is getting dryer, the Arctic is getting warmer and storms are getting stronger and more frequent on average.
That it is colder during winters in some parts doesn’t mean that the earth is not warming, just that the jet streams is changing pattern, which is also part of the predictions.
If you look hard enough you can find some arguments against just about anything, or even some Scientists (real or fake) who will argue your case, no matter what that case may be.
The argument isn’t about the earth having had warmer and colder periods in the past, but the speed at which the changes occurs. Can that be explained any other way than by human activities?
Yes when Krakatoa exploded there were a period of rapid cooling, but it was caused by a blanket of ash and lasted a short period.
Yes Australia have had dense jungle where there are now desert, as did Svalbard, but that was because the polar axis have shifted, and/or continental drift, or both. It happened over millennia, not decades.