Study: Air Pollution Responsible for 7% of Deaths in Major Cities in India
The worst situation is seen in the capital, New Delhi, with 12,000 annual deaths
WHO Study: We breathe clean air only in seven countries on the planet – Where is Greece ranked?
The most polluted country is Pakistan - Which other countries are on the "black list" - Economic progress seems to threaten air quality
The Cities With the Slowest Traffic (infographic)
Four cities are in Europe