At first it's hard... just take a look at the previous PP
works...
It can be an area of your interest, or something related to your
diploma.
Say if it's an area of your interest, you want to find out more
about pollution and how it's harming us, what steps we are taking,
etc, do some research, then some interviews and write up about
it.
If it's your diploma... just anyhow hit. Grab someone from your
family who's working in that industry and interview...
