Geothermal heat sources suspiciously close to areas where the ice has been melting.
An international team of scientists led by British Antarctic Survey (BAS) has produced a new map showing how much heat from the Earth’s interior is reaching the base of the Antarctic Ice Sheet. The map was published last week (13 Nov 2017) in the journal Geophysical Research Letters.
According to a press release from the BAS, “the team has produced the most up to date, accurate and high-resolution map of the so called ‘geothermal heat flux’ at the base of the Antarctic Ice Sheet.”
“Magnetic measurements mainly collected by aircraft reveal the ‘hot spots’ under the West Antarctic Ice Sheet and on the Antarctic Peninsula. These areas are the most rapidly changing areas of the Antarctic Ice Sheet.” (Italics added.”
“The new study from BAS uses over 50 years of magnetic measurements that were collected from thousands of hours flying over the continent. Warmer rocks lose their magnetic properties, and so the team was able to use the loss of magnetism in certain areas to calculate an estimate of the geothermal heat flux.”
You’d think a discovery such as this would make it clear that geothermal activity is melting the ice. But oh, no, the BAS has other ideas.
Even though “the most rapidly changing areas of the Antarctic Ice Sheet” (areas where the ice is melting) are located in the same areas as the geothermal hotspots, the BAS seems unable to grasp that there may be a cause-and-effect relationship.
“The ice loss we’ve seen in recent decades is actually the result of changes in air and ocean temperatures,” says BAS Science Director and glaciologist Professor David Vaughan.
Uh huh. I wonder if Professor Vaughn also thinks El Niño (which warms the Pacific Ocean) is caused by humans.
Thanks to J.H. Walker for these links