Dating age range graph


Thus, regardless of which year ( 1934, 1998, or 2010) turns out to be the warmest of the past century, that year will rank number 9,099 in the long-term list.

The climate has been warming slowly since the Little Ice Age (Fig.

It shows essentially the same temperatures as Cuffy and Clow (1997) but with somewhat greater detail.

What both of these temperature curves show is that virtually all of the past 10,000 years has been warmer than the present.

This would make 95 years BP 1855 — a full 155 years ago, long before any other global temperature record shows any modern warming.

In order to make absolutely sure of my dates, I emailed Richard Alley, and he confirmed that the GISP2 “present” is 1950, and that the most recent temperature in the GISP2 series is therefore 1855. He wants to present a regional proxy for temperature from 155 years ago as somehow indicative of present global temperatures.

With the exception of a brief warm period about 8,200 years ago, the entire period from 1,500 to 10,500 years ago was significantly warmer than present.