Whoops!

On June 15th, WattsUpWithThat posted a graph of climate predictions made in 1988 contrasted with what has actually occurred. This is the graph:

Figure 1: Temperature forecast Hansen’s group from the year 1988. The various scenarios are 1.5% CO 2 increase (blue), constant increase in CO 2 emissions (green) and stagnant CO 2 emissions (red). In reality, the increase in CO 2 emissions by as much as 2.5%, which would correspond to the scenario above the blue curve. The black curve is the ultimate real-measured temperature (rolling 5-year average). Hansen’s model overestimates the temperature by 1.9 ° C, which is a whopping 150% wrong. Figure supplemented by Hansen et al. (1988) .

As the chart clearly shows, there was definitely something wrong with their calculations.

The article concludes:

The CO 2 emissions since 2000 to about 2.5 percent per year has increased, so that we would expect according to the Hansen paper a temperature rise, which should be stronger than in model A. Figure 1 shows the three Hansen scenarios and the real measured global temperature curve are shown. The protruding beyond Scenario A arrow represents the temperature value that the Hansen team would have predicted on the basis of a CO 2 increase of 2.5%. Be increased according to the Hansen’s forecast, the temperature would have compared to the same level in the 1970s by 1.5 ° C. In truth, however, the temperature has increased by only 0.6 ° C.

It is apparent that the next to it by the Hansen group in 1988 modeled temperature prediction by about 150%. It is extremely regrettable that precisely this type of modeling of our politicians is still regarded as a reliable climate prediction.

This is more science than I am comfortable dealing with, but the bottom line is simple–they got it wrong. The politicians in many countries are still using these faulty predictions as an excuse to grab more power and limit the ability of their citizens to prosper. It’s time we held them accountable for their reliance on faulty information. The global warming debate was never about saving the planet–it was about more government control.

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