We are constantly exposed to different kinds of radiations. Nuclear radiation is dangerous for sure and we get it e.g. from the air we breathe in form of Radon, originally coming from the soil. Electromagnetic radiation we get from electrical devices such as cell phones, microwave ovens and even from TV and computers. Especially I would be concerned about the radiation from cell phones because they are held near the most important organ of ours, the brain. So far the scientist haven't found serious threats in cell phones but no one really knows what kind of long-term effects can electromagnetic radiation have in us.
The other thing with this is that we are highly dependant on electromagnetism and the system is vulnerable. A huge electromagnetic storm from the Sun could black out our electricity and interrupt a variety of things. It has also been found that the magnetic poles of the Earth change place once in a while and someone has stated a hypothesis called Cataclysmic pole shift hypothesis in which the poles could switch places very quickly disabling the protecting magnetic field of the Earth and exposing us to solar winds. Only time will tell!
The other thing with this is that we are highly dependant on electromagnetism and the system is vulnerable. A huge electromagnetic storm from the Sun could black out our electricity and interrupt a variety of things. It has also been found that the magnetic poles of the Earth change place once in a while and someone has stated a hypothesis called Cataclysmic pole shift hypothesis in which the poles could switch places very quickly disabling the protecting magnetic field of the Earth and exposing us to solar winds. Only time will tell!
