Have you by any chance looked at a graph of average temperatures over time?
Over the history of earth, much worse happened. Statistically, this change is nothing over the millions and even billions of years.
Humans did not exist for most of that time, but yes it’s inconsequential to Earth that there’s warming, Earth is a rock with spinning molten metal inside so it doesn’t care. But it’s pretty fucking important to all the things living on the Earth that there’s warming beyond what they evolved to withstand.
When it comes to climate change we know the mechanism that keeps earth warmer than other random space rocks circling the sun (Greenhouse effect, which was discovered in 1856), we know which gasses contribute to that greenhouse effect, we know that we’ve added a shit ton of them which were buried for millions of years into the atmosphere, we can measure carbon dioxide and other gasses at higher volumes than they’ve been since humans existed, which also coincides with when we started releasing them in vast quantities.
After we’ve got the means, the methods, and the triggers, what more do you need to beyond a reasonable doubt to realize man made climate change?
I have a degree in statistics, do you understand statistics?
Correlation doesn’t imply causation. But we have casual and testable mechanisms to validate these theories and what we’re seeing. We can measure the greenhouse effect directly by experiment.
I hear your argument, Earth’s been hotter millions of years ago, sure, but that doesn’t invalidate human climate change at all.