By Sheldon Walker – Re-Blogged From http://www.WattsUpWithThat.com
This article presents a method for calculating the Earth’s rate of warming, using the existing global temperature series.
It can be difficult to work out the Earth’s rate of warming. There are large variations in temperature from month to month, and different rates can be calculated depending upon the time interval and the end points chosen. A reasonable estimate can be made for long time intervals (100 years for example), but it would be useful if we could calculate the rate of warming for medium or short intervals. This would allow us to determine whether the rate of warming was increasing, decreasing, or staying the same.