“…Still, ambient air pollution is not an unavoidable consequence of modern economic growth [27,32,35,56,65,67,74,88,91], but the global requirement of eliminating the ambient air pollution will require courageous and fearless leadership, considerable new resources, mainly financial, from the EU community, and sweeping societal changes such as education and awareness [23,40,48,52,57]. Financial development, industrialization, the industrial sector, and urbanization are pointed in the literature as drivers of CO 2 emissions increases [23], and only renewable energy was found to reduce the environmental burden up to this moment in an effective way, at least for developed countries such as the EU 27 (see [23] for a comprehensive review of findings).…”