STRASBOURG, France and BARCELONA, Spain, November 23, 2016 /PRNewswire/ -- Berlin, Dublin, Krakow and Rotterdam Demonstrate How Switch to Natural Gas Significantly Contributes toReducedAir PollutionA new report from the International Gas Union (IGU)highlights howthe increaseduse of natural gas inpower generation, heating andtransport cansignificantlyreduceair pollution- a direct cause of around 400,000 deaths across the EU in 2012. (Logo: http://photos.prnewswire.com/prnh/20151202/292697LOGO ) Urban air pollution has become a top priority for local, national and international governments in both developed and developing countries as they seek to reduce severe effects on human health. Cities around the world are increasingly galvanized to take action to reduce the environmental, health and economic impact of air emissions. The new research also highlights the correlation between reducing air pollutants and the greenhouse gas emissions that contribute to climate change. The report highlights case studies in Berlin, Dublin, Krakow and Rotterdam, where both greenhouse gas emissions and air quality have been significantly improved by the displacement of coal in power generation, space heating, and increased use of natural gas for inner city transportation. The study examines policies, such as fuel switching initiatives, that have led, or are leading to, real progress in improving air quality without sacrificing economic development.