This eye-catching chart is from this article on Phys.org. The article says that a warm climate is more sensitive to changes in atmospheric CO2. Which means that a given rise in atmospheric CO2 raises global average temperatures more when the temperature itself is higher. Not good news. I added the red dot, which shows where the global temperature anomaly is likely to be on the same scale as the long-term section of the chart on the left. Click to enlarge. [Hat tip to JPratt27]
Disclaimer. After nearly 40 years managing money for some of the largest life offices and investment managers in the world, I think I have something to offer. These days I'm retired, and I can't by law give you advice. While I do make mistakes, I try hard to do my analysis thoroughly, and to make sure my data are correct (old habits die hard!) Also, don't ask me why I called it "Volewica". It's too late, now.
BTW, clicking on most charts will produce the original-sized, i.e., bigger version.