Scientists have long warned of the dangers of global warming and current evidence suggests that global warming will be on the high end of predictions rather than the low end. The current estimates are somewhere between 1.5C and 4.5C. So why has there been an apparent pause in the predicted heating effect? According to the New Scientist, it seems that the models making the predictions were provided with the wrong data and when the correct data was provided the models matched the observed data. Data had not originally included changes in cyclic solar output combined with variations in volcanic activity and pollution levels. However, the bad news is that the longer term increase in warming was maintained or increased, so global warming is still with us, despite the views of the sceptics.