- Re: Earth warming from 'inside out'? - would that not violate the 2nd law of thermodynamics?
Posted by Ian M
on October 31, 2021, 10:50 pm, in reply to "Re: Earth warming from 'inside out'? - would that not violate the 2nd law of thermodynamics?"
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Not seen this latest research on mantle plumes melting Greenland ice from beneath but don't think it's going to prove what the deniers think it will. Brief look on Skeptical Science (recommended go-to source for debunking these sorts of claims) turned up this page on underground heat influences: ***** https://skepticalscience.com/underground-temperatures-control-climate.htm 'What influence do underground temperatures have on climate? What the science says... The flow of energy outwards from the interior of the Earth is 1/10,000th of the size of the energy flow from the Sun. Furthermore, over the past few million years, the heat flow from deep in the Earth has also remained very steady compared to other climatic factors. Heat from the bowels of the Earth does not influence climate in any significant way. Climate Myth... Underground temperatures control climate "There are other possible causes for climate change which could be associated with solar activity or related to variations in the temperature of the liquid core of the Earth, which is about 5,400 degrees Celsius. We don't need a high heat flow - just a high temperature for the core to affect the surface climate. There is massive heat inside the Earth" (Doug Cotton) Consider: The center of the Earth is at a temperature of over 6000°C, hotter than the surface of the Sun. We have all seen pictures of rivers of red-hot magma pouring out of volcanoes. Many of us have bathed in natural hot springs. There are plans to exploit geothermal energy as a renewable resource. Common sense might suggest that all that heat must have a big effect on climate. But the science says no: the amount of heat energy coming out of the Earth is actually very small and the rate of flow of that heat is very steady over long time periods. The effect on the climate is in fact too small to be worth considering. [etc...] ***** cheers, I |