Study: Models Overestimate Global Warming

Last twenty years have seen a combination of errors, researchers say

Due to a complex system of measuring, a new study finds that global warming has been overestimated over the past 20 years.

According to the study from the University of Victoria, British Columbia, simulated climate models have combined a series of errors in external forcing and internal climate variability to show that global warming has progressed much faster than in reality.