This is the first part of my two-part 2019 Thanksgiving column: “The miracle of Earth’s atmosphere design and the air we breathe: As the Thanksgiving holiday draws near, there is much for us to be thankful for — including the very air that we breathe” Part two should appear on Thanksgiving Day itself. *** This chapter from one of our books, previously available only in print, is now accessible at (as usual) no charge on... Read more