Reinhold Achatz, VP of Research at Siemens, discussed a recent study by the Economist on green cities with Mike Smith at the UN Climate Change Summit in Copenhagen, where he revealed that cities account for 50% of all carbon emissions, and industry leaders should look use green cities' initiatives to standardize emission regulations globally. This interview was created at the Siemens press conference at Danish Industry event.

The Economist study revealed that Copenhagen (which is, of course, the host city of the UN Climate Change Summit) is also the "greenest" city in the world.  According to Achatz, the Siemens sponsored study was meant to provide "sustainable urban infrastructure and an example to others." Achatz joined representatives from The Economist to discuss the conclusions from the study Tuesday, December 8th, as part of an urban energy sustainability panel. Achatz argues that comparing green cities creates a foundation for communities to improve carbon outputs without "reinventing themselves".

Siemens has also introduced multiple initiatives from the UN Climate Change Summit conference, including smart grid technology for electric cars, energy-efficient gas turbines, and energy vehicle distribution projects (the "EDISON" project).

Please see related post by Smith on The Economist survey naming Copenhagen as the greenest city in Europe