At the time I researched the topic back in 2008 and released the book in 2009, most published papers spoke of a 10% drop in the strength of the Magnetic Field. The field has weakened by 5% over the period 1850-1970 and an additional collapse of 5% took place in the period 1970-2000. Now it seems that in the last decade the Magnetic field has weakened by another 5% in the last decade. Not only a drop of 15% in total but the collapse seems to be accelerating. Although the Mail Online article asks the reader to forget about global warming but the opposite should be the case since I believe that, the Global Warming and the Magnetic field weakening are two sides of the same coin. In my research on Earth Temperature page of this site, a direct link is established between the strength of the Magnetic field in the Thermosphere layer of the Atmosphere (100 – 700 km above surface) and the temperature variation on the surface of Earth. Simply put, the weaker the Magnetic field gets, the higher the thermal radiation at the Thermosphere layer. The entrapment of Sun’s charged particles, such as Protons, by the Magnetic field causes the Protons to travel at a high speed along the Magnetic field force lines. The collisions of some of those Protons with the low density air gases in the Thermosphere region such as Oxygen and Nitrogen produce heat that ranges from 500 degree Celsius above the magnetic poles to 2000 degree Celsius above the mid distance between the magnetic poles, or the magnetic equator. The collapse of the magnetic field force lines invites such Protons to travel faster between the two poles; at a maximum speed at mid-point and at a minimum speed above the Poles where Protons slow down and reach lower altitude causing the Aurora Borealis and Aurora Australis lights. More energy is produced from collisions at higher speeds of such Protons with air molecules. Accordingly higher thermal radiation gets to the surface of Earth, causing Global Warming to occur.
Also, the collapse of the Magnetic field allows more Protons to penetrate to Earth’s surface, especially at the time of explosions on the Sun’s surface or Coronal Mass Ejection (CME). Not only do power grids get bathed by a large volume of Protons or positive currents that can bring electric circuits to overheat but also they will affect life on the planet as I elaborate more on Sky Phenomena page of this site.