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New study maps carbon footprints, comes to surprising conclusions
The colorful carbon footprints of Denver, Colorado, and its surroundings. Orange shades represent higher footprints. The top inset shows the footprint for downtown Denver, a relatively slight 34 tons per household per year. The bottom inset shows the much larger footprint of the exurbs. Source: Christopher M. Jones and Daniel M. Kammen, 'Spatial Distribution of U.S. Household Carbon Footprints Reveals Suburbanization Undermines Greenhouse Gas Benefits of Urban Population Density,' Environ. Sci. Technol., 2013.
Uploaded: Jan 23, 2014 |
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