text: This brings us to the Number of The Week: 86.7% . As TWTW reported last week, Professor Emeritus of Geology Don Easterbrook has given the annual temperature reports in a different frame of reference. Based on his calculations from the GRIP-2 ice cores from Greenland, for 9,100 of the past 10,500 years it was warmer than today. That is, 86.7% of the time during this 10,500 year period it was warmer than today, and 13.3% of the time it was colder (at least in Greenland).