Real Science and the Earth's Magnietic Field

Recently, an ancient tree in New Zealand was found, estimated to be around 42,000 years old, which provides evidence of a reversal in the Earth's magnetic field during that time. Scientists suggest that over the last 5 million years, the Earth's magnetic field has reversed at least 20 times, occurring every 200,000 to 300,000 years. It is challenging to predict when future reversals will occur, and before the poles switch, the field weakens and disappears.

Modern technology allows for continuous mapping of the Earth's magnetic field, with the World Magnetic Model (WMM) updated every five years, important for navigation and GPS. The latest update was on December 17, 2024. However, it is noted that these magnetic shifts are unpredictable, with no known patterns to their changes according to Nils Olsen.

Overall, NASA articles confirm that Earth's magnetic field has been decreasing about 5 percent over the past century and approximately 9 percent over the last 200 years. This decline has complex and uncertain implications, including increased UV exposure through a weakened ozone layer, which could have both positive and negative effects. No predictive models exist for outcomes over long periods, so scientists can only observe historical changes and current measurements.

For instance, global sea levels have risen slowly at a rate of 0. 06 inches per year over the past 140 years, which appears unaffected by rising fossil fuel use or climate changes like temperature spikes and extreme weather events. Researchers are examining the links between magnetic field strength and climate health, noting that weakening during ancient events may have led to significant weather changes and extinctions of species.

Questions remain about the causes of ozone layer depletion observed in the 1970s, including whether it was due to human actions or natural geomagnetic changes. While some still attribute climate trends solely to CO2 emissions, others acknowledge the importance of the Earth’s magnetic field on climate variations.

A 2016 study highlights that changes in the magnetic field have affected atmospheric temperature and wind patterns, noting responses that propagate through the atmosphere. Despite these findings, there seems to be a reluctance from some scientific organizations to connect magnetic fluctuations to current climate changes, leaving many unknown factors unconsidered in climate models. True science encourages ongoing inquiry rather than quick conclusions. 

https://www.americanthinker.com/articles/2024/12/real_science_and_the_earth_s_magnietic_field.html