Stockholm, December 23, 2010 - KTH
researcher Jorge Zapico at Sweden's Centre for Sustainable
Communications, CESC, has developed an application which can
calculate the carbon footprint of individual websites.
The application is called Greenalytics and matches web
statistics with environmental data. It turns out that the KTH
website produces seven tonnes of carbon dioxide each year.
"With Greenalytics we are introducing an environmental approach
to websites," says Jorge Zapico, a researcher at KTH's Centre for
Sustainable Communications, CESC.
His application reveals how much emissions the infrastructure
behind a website generates. Electricity consumption from servers,
routers, and from users, i.e. those who surf on to a website,
affects the climate, especially in countries that use a lot of coal
in the production of electricity.
According to Greenalytics, KTH's website, which is among the top
100 sites in Sweden, produces seven tonnes of carbon dioxide each
year. It corresponds to a climate impact of 40 000 kilometres by
car or 70 hours of air travel.
Greenalytics is a so-called mashup, which compiles information
from various sources and calculates a result in real time. It uses
statistics from Google Analytics, one of the world's most widely
used analysis tools that measures how many visitors a site has and
the current environmental data from research carried out by
"In my research, I want to illustrate the options available when
databases are opened up and provide data in a standardized format,
which in turn can be linked to environmental data. If you are aware
of the climate impact a product has, you can also reduce it," says
Jorge Zapico finally provides us with some tips on how to reduce
a website's climate emissions.
"The electricity source for the server is the most important
factor that can easily be influenced. Choose a server located in a
country with a climate-friendly mix of electricity sources such as
If the server is powered by electricity from renewable sources,
it is even better. It is also important to build light websites
that do not need to load heavy content.