Sweden was facing a serious soil acidification and water eutrophication problem caused partly by emissions of nitrogen oxides (NOx) from combustion processes in transport, industry and power. In 1992, Sweden introduced a high tax on NOx emissions from large combustion sources (e.g. power plants,...

The investment choices we make in the coming years will either lock-in a climate-compatible, inclusive growth pathway, or a high-carbon, inefficient and unsustainable pathway for decades to come. Cities and regions, responsible for 60% of public investment in OECD countries, are significant...