Guest Post by Renee Hannon Introduction This post examines sample spacing for CO2 measurements in Antarctic ice cores during the past 800,000 years to better understand if gaps in sampling are too large to capture centennial fluctuations. The IPCC states: “Although ice core records present low-pass filtered time series due to gas diffusion and gradualContinue reading “CO2 Sample Spacing in Ice Cores”
How do the two warming periods in the 20th Century compare?
Review of temperature reconstructions for the past 4000 years
Mark Steyn has written a wonderful new book on Dr. Michael Mann’s hockey stick and the controversy surrounding it. It is difficult to overstate the significance or impact of Mann’s Hockey Stick (Mann, Bradley, Hughes (23 April 1998), “Global-scale temperature patterns and climate forcing over the past six centuries” (PDF), Nature 392 (6678): 779–787, Figure 5, the paper is oftenContinue reading “New Book: A Disgrace to the Profession, by Mark Steyn”