Future Temperature (IMAGE) University of Washington Caption The projected global average temperature change by 2100 is 3.2 C (5.8 F), with a 90 percent chance it will fall within 2.0-4.9 C (3.6-8.8 F). Credit Adrian Raftery/University of Washington Usage Restrictions With credit 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.