* Vancouver second, New York comes in third
* Consumption of water, electricity factored into survey
By Sarah McBride
ASPEN, Colo., June 30 San Francisco is the
greenest city in North America, followed by Vancouver and New
York, according to the latest survey of green-city rankings.
The survey, commissioned by Siemens Corp and conducted by
the Economist Intelligence Unit, looked at 31 indicators,
ranging from consumption of water and electricity to efficiency
Detroit was the least green of 27 cities ranked, just
behind St. Louis, the survey said.
According to the survey, cities with comprehensive plans
for sustainable use of resources such as land and energy, did
better in the rankings, and that the correlation between wealth
and environmental performance was not as strong in North
America compared with Europe and Asia.
Siemens has developed green-city indices for Europe, Latin
America, and Asia. This was the company's first for North
Similar surveys show slightly different results, but with
the same broad group of cities tending to flock to the top. For
example, the Daily Beast this year ranked New York, Las Vegas,
and San Francisco as the top three.
The website factored in criteria including the percentage
of residents who admitted in a survey to "no concern or
consciousness of environmental issues."
Siemens Chief Executive Eric Spiegel plans to unveil its new
index later Thursday at the Aspen Ideas Festival.
(Reporting by Sarah McBride; editing by Carol Bishopric)