U.N. Report Says Global Warming Predictions Overstated Problem

The draft of a U.N. climate change report due to be published in 2014 has been leaked, and it shows that the four temperature models the U.N. used from 1990 to 2012 vastly overestimated the warming of the earth during that time.

The report from the U.N.’s Intergovernmental Panel on Climate Change (IPCC) had a graph that showed how four temperature models predicted the earth’s temperature was rising, but the midpoints of the rise the models predicted varied between 0.5 and 0.9 degrees, while the actual midpoints in the 1990-2012 era was only 0.28 degrees Fahrenheit.

Roy Spencer, a climatologist at the University of Alabama at Huntsville, commented on the evidence:

Temperatures have not risen nearly as much as almost all of the climate models predicted. Their predictions have largely failed, four times in a row... what that means is that it's time for them to re-evaluate. It is evidence that CO2 is not nearly as strong a climate driver as the IPCC has been assuming.

But defenders of climate change hysteria were looking for loopholes. Aaron Huertas, of the Union of Concerned Scientists, said:

It’s important to keep in mind that there are natural short-term variations in global temperature that happen right alongside human-induced warming. For instance, it would have been impossible for the IPCC to predict if a volcanic eruption might temporarily cool the Earth, as the Mount Pinatubo eruption did in 1991.

The IPCC left itself the same excuse in the report, stating that “the model projections ... do not fully account for natural variability.”

Spencer agreed that the idea that humans contribute to global warming, saying, “The IPCC's claim is that they are 90 percent sure that humans have 'contributed to' the observed warming. Hell, even I would agree with that innocuous statement.”

But he also said that although humans do have an impact because of the production of greenhouse gases, the impact is less than climate change aficionados would care to admit:

It is evidence that CO2 is not nearly as strong a climate driver as the IPCC has been assuming. This is the possibility they do not allow to be considered, because it would end all of their policy-changing goals.


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