New paper shows no correlation between CO2 and Greenland temperatures over past 7,200 years

The Hockey Schtick
"A recent paper published in Quaternary Science Reviews shows no rational nor consistent relationship between CO2 levels and July air temperatures in West Greenland over the past 7,200 years. The authors also find "summer temperatures were 2-3°C warmer than present" between 6,000 and 4,000 years ago."