Hey Trina! You might want to check out some of the things on this website. Also, if you are looking for someone to interview, you might want to interview someone from Dunkin' Donuts. A little off the wall, I know, but they waste soooooo much food at the end of each day. My dad and I went in late one night and we saw them throw away a lot of food. It might be interesting for your I-Search. :)
http://www.treehugger.com/files/2008/12/the_year_in_gre.php