Remember: 10,000 years ago (just yesterday) we were in an ice age. I feel like its pretty tough to control the global temperature
It’s amazing how little people understand about our recent geologic history. For instance, most don’t realize that during the period you highlight, what is now known as Chicago was under a MILE of ice. The Great Lakes didn’t exist 25K-years ago. Instead, they were created when the ice from the last ice age retreated.
Think about how much colder it had to have been for a mile of ice to accumulate over most of what is now the Midwest. Our climate has changed significantly in what has been a blink of an eye, geologically...and it all had nothing to do with Mastedons and their SUVs.