I am at the end of a four-week travel spree, and I am weary. What happened to the energy of my youth? I believe that the frenetic electricity that characterizes youth dissipates back to the universe from whence it came. I can’t imagine staying awake past midnight. In college, all-nighters were de rigueur.

This week I am in Pittsburgh, working for a couple of days with the Pennsylvania Environmental Council (PEC) and my good friends Davitt Woodwell and Jack Ubinger. Last week I stopped by Chicago between projects in Indiana (Beyond the Beach Discovery Trail) and Hackmatack (northwestern Illinois and southeastern Wisconsin). The week before I parked in Harrisburg, and the week before that in Philadelphia.