How can we depend on computer models of global warming?
For starters, weather is much more unpredictable than climate. Climate is just the long-term average of weather over the entire planet. All the little unpredictable variations average out. Plus meteorologists have gotten pretty good at predicting the weather several days in advance. We know we can depend on computer models for global warming because they’ve proven themselves to be accurate. For starters, they accurately hindcast the temperature changes over the past century: http://www.globalwarmingart.com/wiki/Ima… And they’ve also been used for 20 years now, and have predicted the ensuing warming to a high degree of accuracy: http://www.realclimate.org/index.php/arc…