Some of Honda's 2009 vehicles will feature their Ecological Drive Assist System (EDAS), a color-coded speedometer. The background changes its ambient color based not on preset speed limits, but on real-time fuel consumption patterns. It lights up green when you are practicing smooth acceleration and deceleration. See blue, however, and you know that you are sucking down gas with bursts of acceleration or deceleration.
Implications - The green movement has made a vast segment of consumers sensitive to their consumption patterns. These consumers are eager to find ways to reduce their own environmental impact. Companies that produce products with a detrimental carbon impact ought to enable easy visualization of consumption patterns.