We have all heard that wind power is free, but we know that nothing is free. Aside from the cost of creating and maintaining wind turbines, they too must obey the laws of physics, meaning that in time they wear out. When they wear out, they cannot be left in place, but must be dismantled, moved and disposed of all of which requires energy and must be done at a reasonable cost. The following article discusses the cost of decommission wind turbines and the numbers so far seem to indicate that the reserves set aside for decommissioning may be lower than necessary. Finding a way to decommission may create a huge new industry, but ti will decrease the cost effectiveness of wind turbines. https://www.instituteforenergyresearch.org/renewable/wind/the-cost-of-decommissioning-wind-turbines-is-huge/

It is difficult to write an interesting book on politics when 1) the national politics in question cover a country unfamiliar to the reader and 2) included individuals from an obscure past, yet Professor Craig managed to create a history that is lively and very informative.  We tend to think of Prussia as a militarized state, going back to the time of Frederick the Great, and yet there were several attempts by both the civilian and military leadership to exert civilian control over the military (primarily the officer corps).  Each attempt failed due to either poor and uncoordinated political moves, foreign wars or the revolution of 1848.