Some great TED talks-

Eben Bayer on the possibilities of mushrooms replacing Styrofoam.

www.ted.com/talks/eben_bayer_are_mushrooms_the_new_plastic.html

New York Times food writer Mark Bittman discusses our food system, it's history, future and whats wrong with it.

www.ted.com/talks/mark_bittman_on_what_s_wrong_with_what_we_eat.html

Graham Hill talks about the benefits of being taking meat out of our diets, and why he's a "weekday vegetarian."

www.ted.com/talks/lang/eng/graham_hill_weekday_vegetarian.html