The European Environment Bureau and Friends of the Earth Germany have launched an updated version of their Sootfree Cities ranking.
In total, 23 cities were ranked according to their efforts to improve air quality through transport policies. Each city was evaluated against nine different criteria, including economic incentives, promotion of public transport and the number of low emission zones, and given a percentage.
Zurich in Switzerland came out on top of the rankings with 89%, or a B+ grade. Copenhagen and Vienna closely followed.
No city achieved an A grade (90% or more), and six cities (Dublin, Glasgow, Madrid, Rome, Lisbon and Luxembourg) were given an F grade.
The cities were last ranked in 2012, and the previous ratings are available on the website to allow for comparison.
Visit the Sootfree Cities website and read the ranking.
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