Thursday, July 7, 2011

New paper finds temperatures and precipitation were higher 1000 years ago

A paper published last week in the journal Climate of the Past examines the climate of central China over the past 1800 years using two different types of proxies. The paper finds higher temperatures and precipitation were present during the Medieval Warming Period (960-1100 AD) than at the end of the 20th century. This paper adds to the published work of 986 scientists who have documented that the Medieval Warming Period was as hot or hotter than the present and was a global phenomenon. This study also shows both the rate and magnitude of the rise in temperature from the year ~ 700- 880 AD were much greater than over a comparable period including the 20th century.
Blue line in top graph shows temperature proxy and red line precipitation proxy. Green line in bottom graph shows another temperature proxy and the same precipitation proxy. Horizontal blue, red, and green lines were added to show the levels at the end of the 20th century. 


  1. Where exactly is the link to this paper?

  2. I added to top of post, thanks