The GDP data have been extracted from the Urban Audit database and joined with the corresponding Urban Audit cities shapefile. The reference year is 2004 ; due to data quality issues data from 2001 are used for ES. After joining the statistical with the geographic data the information is mapped as coloured dots.
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Did you know that most of oil pollution in our oceans is the result of human activity on land and not tanker spills? If you notice oil leaking from your car, fix it right away! Never dispose of used oil into a storm drain.
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