It's no great secret that humans are a significant source of many chemicals and nutrients used by other organisms throughout the world. For instance, plants...read more →
The people who feel that the climate change legislation working its way through congress isn't sufficiently awesome to merit their support sometimes contend that no...read more →
I more or less ignored some of the early reports of trouble with the Velib bike-sharing program in Paris, because they seemed thinly reported. But...read more →
