News ID: 255777
Published: 1126 GMT July 14, 2019

Finnish scientists: Effect of human activity on climate change insignificant

Finnish scientists: Effect of human activity on climate change insignificant
helsinkitimes.fi

A new paper published by researchers from the University of Turku in Finland suggests that even though observed changes in the climate are real, the effects of human activity on these changes are insignificant.

The team suggested that the idea of manmade climate change is a mere miscalculation or skewing the formulas by the Intergovernmental Panel on Climate Change (IPCC), helsinkitimes.fi wrote.

Jyrki Kauppinen and Pekka Malmi, from the Department of Physics and Astronomy, University of Turku, in their paper published on 29th June 2019 claim to prove that the “ Google Cloud Messaging (GCM) models used in IPCC Fifth Assessment Report (ARS) fail to calculate the influences of the low cloud cover changes on the global temperature. That is why those models give a very small natural temperature change leaving a very large change for the contribution of the green house gases in the observed temperature.”

Thus, in order to come to the results matching the actual climate change the IPCC has to “use a very large sensitivity to compensate a too small natural component. Further they have to leave out the strong negative feedback due to the clouds in order to magnify the sensitivity.”

In addition, Kauppinen and Malmi claim that their paper proves that “the changes in the low cloud cover fraction practically control the global temperature.”

The authors argued that the IPCC has used computational results which cannot be considered experimental evidence, and site this as the reason for contradictory conclusions.

“The IPCC climate sensitivity is about one order of magnitude (i.e. 10 times) too high, because a strong negative feedback of the clouds is missing in climate models. If we pay attention to the fact that only a small part of the increased CO2 concentration is anthropogenic, we have to recognize that the anthropogenic climate change does not exist in practice, write Kauppinen and Malmi.

“The major part of the extra CO2 is emitted from oceans, according to Henry‘s law. The low clouds practically control the global average temperature. During the last hundred years the temperature is increased about 0.1℃ because of CO2. The human contribution was about 0.01℃.”

   
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