Pumacocha Results (2 of 2) (IMAGE) University of Pittsburgh Caption Delta-O-18 levels from Pumacocha correlate with geological temperature records, including solar radiation levels, titanium concentration at Cariaco Basin, and annual temperatures in the Northern Hemisphere and North Atlantic. Credit U. of Pittsburgh Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.