by Greg Krehbiel on 28 January 2014
The article is overly dramatic, but it’s true that the earth’s magnetic field flips from time to time (so the geologists tell us, based in part on analysis of rock in the sea floor), and it’s hard to know exactly why or when. Some people say we’re overdue, but they don’t really know. These things aren’t on a schedule that we can determine.
IMO it’s just one more crazy, chaotic thing that affects life on this spinning ball of rock, and it’s another of the reasons I’m skeptical of any predictions about future climate.
Sea levels rise and fall. Temperature goes up and down. Rivers change course. Rain forests turn into deserts and vice versa. Plants and animals go extinct. There is no “normal” that we can count on or try to preserve.
-- 2014-01-28 » Greg Krehbiel