I took the above picture on a cool wet, foggy morning. Since we have had a cool wet spring, people around here have a hard time visualizing that the earth is getting hotter. It is because of the difference between local weather and the global integrated temperature. While it was cool here it was a lot hotter in other locations. In fact, this past April was the hottest April on record and this year looks like it is going to be another record setter.
I found an interesting animated graphic that shows how much the earth has been heating up. Click on this link and watch how it has been spiraling up hotter and hotter. Note how it is increasing at a greater rate each year.
Additional information about the spiraling graphic can be found at this link.