Anyone who has spent any amount of time in Baltimore, my hometown, probably knows the Chesapeake Bay, the largest estuary in North America, is not healthy. The thought of Fells Point on a humid night in July or August wouldn’t be complete without the ubiquitous smell of the harbor after a storm, when all of the trash has been washed toward shore. It’s fairly innocuous, just present if you take the time to notice. However, for a few weeks of summer 2007, the smell wasn’t just present, it was overwhelming. Massive die-offs lead to hundreds of decaying fish crowding Fells Point and the Inner Harbor, the parts of town responsible for tourist revenues, and where my sister worked at the Maryland Science Center.