Pedal-powered Christmas tree lights Copenhagen

 

Summary

With international climate change talks a week away, host city takes its tannenbaum off-grid with a rack of bicycles powering LED lights.

Events

IT Priorities 2010

Sydney, Australia - 27 Jul 2010
Melbourne, Australia - 28 Jul 2010
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Delhi, India - 6 Aug 2010

IDC's Asia/Pacific Cloud Computing Conference 2010
31 Aug 2010

Marriott Hotel, Singapore

When you're the host city for international climate change negotiations, using energy-efficient LED lights on the Christmas tree apparently isn't enough.

The traditional Christmas tree in Copenhagen's City Hall Square will be powered by people, rather than a distant power plant. The square has been equipped with 15 bicycles which, when pedaled, light up the 700 LED bulbs on the tree.

The 17-meter-high tree went up last week during an opening ceremony in which Saint Nicholas climbed a fire truck ladder to the top of the tree and lit fireworks. Even during the ceremony, the lights were being powered by the bicycles, according to a representative from the city of Copenhagen. Children, a mayor, and international VIPs joined in the pedaling during the opening ceremony, he added.

The carbon-light approach to lighting the traditional Christmas tree is one of the attractions being organized for COP15, the latest round of international climate change talks, which start next week. The purpose of these meetings is to establish treaties to limit the amount of heat-trapping gases in the atmosphere.

Reuters has a list of the commitments under discussion during the negotiation, which include a goal of limiting global warming to no more than 2 degrees Celsius (3.6 Fahrenheit) above preindustrial levels, a "threshold that many scientists see as a threshold for dangerous climate change".

Expectations that there would be a major breakthrough in Copenhagen have been low in part because the U.S. Congress has not been able to pass an energy and climate bill that would limit greenhouse gas emissions. But the past two weeks have seen a number of political twists, summarized at the New York Times.

All the political jockeying, though, could have a real impact on green technology and innovation. For the most part, green-tech entrepreneurs and investors are not betting on having a hefty price attached to carbon in the immediate future. Rather any climate regulations serve mainly as a signal that the economic system will find a way to create a financial incentive for technologies that reduce emissions.

Another important topic for discussion in Copenhagen is how green technologies will be transferred to poor countries, writes Earth2Tech.

This article was published as a blog post on CNET News.

Talkback

Pedal-powered Christmas tree lights Copenhagen

How much fossil fuel was burned to harvest, process, transport, and prepare the food needed by the 15 peddling human power plants to expend the calories necessary to light the tree, I wonder? How much carbon dioxide is exhaled by the panting bicyclists? Could it perhaps be less than the fossil fuel and CO2 needed in a high-efficiency power plant to generate the handful of kilowatts needed by the LEDs? Does Denmark import electricity from any of France's zero-emissions nuclear power plants?

Michael Pelletier December 1st, 2009 Reply
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