From 80,000 to 12,000 years ago, when CO2 concentrations lingered near or below 200 ppm, many new or recent studies suggest that when directly comparing region to region, it was as much as 6°C warmer than today even during this ice age period. This has prompted some scientists to “exclude atmospheric pCO2 as a direct … Continue reading 10 Recent Studies Affirm It Was Regionally 2-6°C Warmer Than Today During The Last Glacial