It was with some sense of detachment that I approached the Powershift 2007 conference at the University of Maryland two weeks ago (November 2 to 5). Honestly? I would have expected a lot of students to attend simply to party somewhere new for the weekend; to make friends, escape embarrassing hook-ups, or find new connections for pot. Not, I guessed, to actually learn. But I met student after student who cared passionately about climate change.