Biking for a carbon-free smoothie

How much energy does it actually take to power our everyday appliances? In some cases, it takes 30 minutes of heart-thumping exercise. In this video, Katrine Vejby, a Danish journalist and advocate for a carbon-free Copenhagen, talks about a new technology that turns pedal power into electricity. The energy-generating bike was one of many innovative climate-friendly technologies on display at various exhibits throughout Copenhagen during the UN Climate Change Conference this past week. [See: Arroyo says Philippines most in danger from climate change] Surprisingly, there's no lack of people willing to bike for a smoothie. If only we had to break a sweat every time we use electricity, perhaps we'd use it more efficiently. - GMANews.TV