19 cities report documented reductions in greenhouse-gas emissions

Madrid slashed its greenhouse-gas emissions by more than 19 percent from 1990 to 2011. (futureGalore/Shutterstock.com)

More than 200 cities around the world have pledged to cut, or even eliminate, their greenhouse-gas emissions. But how many of them have turned the corner by actually demonstrating real, quantifiable reductions?

UN-Habitat has now developed a list of cities worldwide reporting that they’ve done just that — they’ve actually reduced their absolute tonnage of emissions compared with a previous base year. A new analysis by the agency’s Robert Kehew and Faderr Johm finds that 19 cities can make that claim and prove it with publicly available information.

It is worth noting that some cities’ emissions reports include just the central city — the major metropolis of the region.  Others seek to encompass their entire metropolitan region.

Here are the figures from Kehew and Johm:

City, COUNTRY Base Year Base Year Total (Million Metric Tons CO2 Equivalent)  Reporting Year Percentage Reduction in Total Emissions from Base Year to Reporting Year
Cape Town, SOUTH AFRICA 2007 27.36 2009 9%
Kaohsiung TAIWAN 2005 64.29 2012 2%
Vienna, AUSTRIA 1990 5.58 2011 13%
Brussels-Capital Region, BELGIUM 1990 4.0 2007 4%
Copenhagen, DENMARK 2005 2.5 2012 21%
Berlin, GERMANY 1990 29.3 2010 27%
Hamburg, GERMANY 1990 20.7 2009 18%
Madrid, SPAIN 1990 12.72 2011 19.4%
Stockholm, SWEDEN 1990 3.66 2009 23%
Birmingham, UK 1990 6.87 2012 18%
Bristol, UK 2005 2.41 2012 12%
Sheffield, UK 2005 3.61 2012 19%
Montreal, CANADA 1990 15.01 2009 6%
Toronto, CANADA 1990 22.0 2011 14.9%
Vancouver, CANADA 2007 2.755 2013 6%
Mexico City, MEXICO 2008 39.4 2012 19.5%
Chicago, USA 2000 34.73 2010 3%
Los Angeles, USA 1990 54.1 2007 7%
New York City, USA 2005 59.2 2009 13%

 

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