Designed by James Kershaw & Chad Garn, eCO2 is more than just a sexy piece of time-telling wrist candy. Using a controversial Carbon Dioxide Scrubber concept, this futuristic time-keeping machine sucks in carbon dioxide from the atmosphere and purifies the air around you, only using the kinetic energy your body produces. Aimed to integrate into the needs of tomorrow with an appropriate style-statement, eCO2 still has some technical hurdles to get past before it turns into a reality.  Kinks aside, we love this idea. [via Yanko]