Thousands of people took to the streets of Skopje, Pljevlja, Tuzla and other cities across the Western Balkans in December to demand action on chronic air pollution plaguing their communities. A new briefing shows that to a large degree these recurring smog incidents are the result of national authorities' protracted inaction. Yet, air quality could be dramatically improved if two EU directives are transposed into the Energy Community Treaty, according to two legal analyses also released today.