Category Archives: Loehle 2008

Calibrating Tropical Speleothems

Dec 1, 2008 – 8:49 AM

Readers have inquired recently about how tropical speleothems are calibrated to temperature. Judd Partin, Kim Cobb (both of Georgia Tech) and associates wrote an excellent article last year (Cobb et al, EPSL 2007) on detailed O18 observations near a Borneo speleothem about which they had published. They introduced the article with the following observation that […]

By Stephen McIntyre | Also posted in Mann et al 2008, Speleothem | Comments (50)

On the Divergence Problem

Nov 30, 2008 – 9:48 PM

Tree rings are widely used for reconstructing climate and past climates are critical for putting the current climate (including global temperatures) into the proper perspective. Is current warming unusual? Only a comparison to the past can tell. To help gain a better understanding of the past and how global temperatures may have behaved, researchers frequently […]

By Stephen McIntyre | Also posted in Divergence | Tagged , , , | Comments (114)