Not really. The actual scientific predictions (with error bars and shit) have been correct because they've been within the error, and normally their estimates leaned conservative.
I don't think they have a 200 year climate model. They have several different models and methodologies going out to 100 years and the range in temperatures by 2100 from 2000 is somewhere between 3-5.
Haven't they been wrong on these predictions every single time?
Not really. The actual scientific predictions (with error bars and shit) have been correct because they've been within the error, and normally their estimates leaned conservative.
Whats the standard error in degrees celsius for a 200 year climate model?
I don't think they have a 200 year climate model. They have several different models and methodologies going out to 100 years and the range in temperatures by 2100 from 2000 is somewhere between 3-5.