Wee Beeno under a protective wing
Don't look down Beeno, the waters are rising
I’ll see your “95 percent of scientists believe in global warming” talking point and raise you a “95 percent of reality thinks your climate models are garbage.” According to that chart of actual satellite and surface temperature observations vs. what was predicted by 90 different climate models, 95 percent of models overestimated actual temperatures. Nothing says Science™ like predicting stuff incorrectly over and over and over again.
Earlier this year, a comparison was done using the GISS global temperature observations dataset versus an earlier version of the NASA/GISS computer climate model output, as of 2015 year-end. That comparison can be viewed here.
It is now 4 months later with the current powerful El Niño producing some very high global temperature averages.
So, how does the GISS dataset, as of March 31, 2016, compare against a newer climate model, specifically, the IPCC's modern CMIP5 model using the supposed business-as-usual greenhouse gas scenario (RCP8.5)?
The adjacent chart tells the story, but we add some more content below:
As we have previously discussed, this is mainly due to the preponderance of El Niño events in the 1990s and La Niña in the 2000s. This internal variability has had a cooling effect on recent surface temperatures (though not of overall global temperatures) which is not captured in the average of the model simulations. However, it is within the range of all individual model simulations, as is evident by the fact that the observational data in Figure 2 (black) falls within the envelope of CMIP5 model simulations (yellow)."
and by the way the conclusion of the scientific research is that:
"calculations of attributable temperature trends based on optimal detection support previous conclusions that human- induced greenhouse gases dominate observed global warming since the mid?20th century"