MWP 1 article Precis

In Adam Hilgers article, Reversal's of Earth's Magnetic Field, he implies that our magnetic field is the reason that humans are able to survive on planet Earth. He discusses numerous reason why our magnetic field is so important and backs his statements up with factual evidence proving to the reader that indeed, our magnetic field is a necessity to our survival. Adam's purpose is to explain our magnetic field in order to get people to understand the severe importance of its existence. Hilger's audience would be the scientific world or anyone who is interested in knowing why the human race can survive on planet Earth.