I spent the better part of the weekend with a group of teachers staying on board the Seawolf, a research vessel docked on the Hudson as part of the Environmental Consortium of Hudson Valley Colleges & Universities’ River Summer program. The five-day session was packed with lectures, site visits and research projects. As glad as I am to have squeaked through my last chemistry class years ago, I didn’t mind the science lessons at River Summer. Studying the ecology and development of New York City with the entire Hudson River watershed as a classroom changes everything. The main thing you learn is that, in addition to being a source of wonderful stories, the river is also a great teacher.