Where in the environment is electric magnetic fields found?
The Earth has a large magnetic field which we call the Magnetosphere. Piezoelectric material such as granite give off magnetic fields from ground tremors, these have been hypothesized as a possible source for ghost, angel, devil, and alien visitations as an area of the brain responsible for recognizing the presence of another person can be triggered by a magnetic field. Moving water has a magnetic field. Methane from clathrates bubbling up through the sea can scramble compasses with a magnetic field and sink ships with the lower density of the water ( note that the Bermuda Triangle is full of clathrates ).
Near any item that uses electricity. Even a plain wire has a magnetic field when the power is on.
