I wrote last week about the coming Grand Solar Minimum, something that will have much more impact on the environment than anything we puny humans can do. It generated a lot of interest from all sides, so it’s time to delve deeper into what we can expect. Starting with the hype: During the last grand solar minimum (GSM), the Maunder Minimum of 1645 to 1715, glaciers advanced, rivers froze, sea ice expanded -- in short, the Little Ice Age. Is another one is almost upon us? Probably not. Maunder occurred at the tail end of a bi-millennial cycle. These cycles...