Today, most of us take the protection provided by Earth's magnetic field completely for granted.  It is essentially a colossal force field which surrounds our planet and makes life possible.  And even with such protection, a giant solar storm could still potentially hit our planet and completely fry our power grid.  But as our magnetic field continues to get weaker and weaker, even much smaller solar storms will have the potential to be cataclysmic.  And once the magnetic field gets weak enough, we will be facing much bigger problems.  As you will see below, if enough solar radiation starts reaching our planet none of us will survive.

Previously, scientists had told us that the magnetic field was weakening by about 5 percent every 100 years.