David Anderson, Lonsdale, Minn., Published August 27 2013
Letter: UN IPCC political, not scientificA recent letter says that because the U.N.’s Intergovernmental Panel on Climate Change says with 95 percent certainty it must be fact that global warming exists and we must confront the problem. First, the IPCC is a political organization not a scientific organization. Tim Ball, an eminent climatologist, explains that the IPCC process was political rather than scientific in his article “How UN Structures Were Designed to Prove Human CO2 Was Causing Global Warming.”
Second, I can say with 100 percent certainty that temperatures have risen and fallen since the beginning of time.
That does not mean man caused those temperature changes. There were ice ages, mini ice ages and periods of warming since Earth’s existence. Time magazine published “Another Ice Age” in 1974, and Newsweek published “The Cooling World” in 1975.
Third, despite the fact that while carbon dioxide concentrations in the atmosphere have continued to increase (to about 400 parts per million, or about 0.04 percent of the air we breathe), the global average temperature increase over the past 15 years was just 0.06 degrees Celsius (0.11 degrees Fahrenheit) – a value very close to zero, a trend that so-called climate models from IPCC have failed to predict.
Climate, by definition, changes. Temperatures, by nature, fluctuate. This we can agree on. Blaming man for changes that have gone on since the beginning of time is about politics – not science. That is 100 percent certain.