Sometime in the past year, this tiny planet we live on in an obscure corner of our Milky Way galaxy went through some sort of tipping point, a “state change” of sorts, and now things are different from how they’ve been at any other time in the 300,000 year history of the human race. Nobody knows for sure what that change or tipping point is. — One theory is that variations in dust concentrations in the Northern Hemisphere’s atmosphere — a function of the temperature of the Atlantic Ocean allowing more or less fine dirt to be picked up and...