The construction of a second Baltic Sea natural gas pipeline from Russia to Germany (Nord Stream 2) is very controversial for political, energy economic, and ecological reasons. The project owner and some European energy companies argue that it is a profitable, private-sector investment project...

Large parts of the existing natural gas distribution networks must be decommissioned due to the decarbonization of the heat supply. However, there are neither regulatory nor economic incentives for the gas network operators to do so and delaying the decommissioning could be expensive for the...