But the changes to those temperatures happen much slower over time when they are naturally occurring. This proves that the rapid changes over the past 100-ish years are caused by humans. And so that disproves your assertion, and also proves that humans can slow down this increase by changing our behaviors.The earth has been much warmer than it is today. It has also been much colder. This was all before humans ever populated the planet. Therefore, nature will continue to make changes and neither you nor I can do anything about it.