We all remember Hypercolor clothes, right? Those tacky t-shirts everyone wore in grade school that just begged to be slapped as you walked down the hall to class. Well, grad students Sue Ngo and Nien Lam of the Interactive Telecommunications Program at New York University, have taken the concept to practical, and eco-friendly new heights with their “Warning Signs” sweatshirts. Emblazoned with a pair of lungs or a heart that change color when there’s air pollution in the immediate vicinity, the shirts use censor embedded technology in the fabric to detect high carbon monoxide levels in the air.  What’s next? According to one report, the pair are considering a breathalyzer shirt to detect alcohol level.  These designers are at the forefront of a growing field of wearable technology and e-textiles and there’s only more to come.