The artists Miriam Simun and Miriam Songster, working in Philadelphia, asked themself the following question : " how will people eat when global warming has changed our environment" ? They answered it via the Ghost food truck (http://steamworkphilly.com/ghostfood.html)... In this one of his kind food truck, they offered vegan substitute for potentially endangered foods: chocolate, cod, and peanut butter. As those substitute had neither taste or smell, participants received in addition a plastic headset delivering aroma to the nose...