The 2014 Russian–Ukrainian crisis reignited European concerns about natural gas supply security recalling the experiences of 2006 and 2009. However, the European supply situation, regulation and infrastructure have changed, with better diversified import sources, EU member states being better...

The German economic and industrial development in the nineteenth and twentieth century was based (among other things) on coal. After World War II, the reconstruction of both German states, too, was largely organized around the coal and steel industry. Therefore, it is a particular challenge,...