Sustainability and Collapse

     Last Tuesday evening mathematician Charles Hadlock offered an excellent lecture -- "Sustainability and Collapse" --  at the MAA Carriage House.  Hadlock's presentation offered examples and arguments from his recently published book, Six Sources of Collapse (MAA, 2012).  This must-read book describes investigation into common dynamics of disaster processes from the extinction of the passenger pigeon to the Chernobyl accident to extreme weather and . . .
     My lingering thoughts about Hadlock's engaging lecture led me to look for poems related to sustainability and collapse.  From my bookshelf I pulled Making Certain It Goes On:  The Collected Poems of Richard Hugo (Norton, 1984) and found this poem of collapse and counting:

Degrees of Gray in Philipsburg      by Richard Hugo (1923 - 1982)