For joy in God’s creation: the Bronx River in New York City. In the last century the river became an industrial sewer, and as recently as ten years ago the wealthy towns upstream discharged overflow raw sewage into it. But it’s come back somewhat, thanks to local efforts and a Congressional appropriation, and tiny fish are being reintroduced, so we haven’t totally destroyed it yet. This is the stream that runs through the Bronx Zoo and the New York Botanical Gardens; urban kayakers like it. (Greg Vigliotti/The New York Times)