Last weekend’s open thread asked you to post a link to an article you read. This weekend I want you to post a link to a video about some kind of sustainable transportation that you watched. I’ll go first. Here’s a vigorous and dramatic view of New York City streets, traffic, and buildings, from a very low-to-the-ground point of view, shot all from cameras mounted on bicycles. I really like the first minute, where the camera is (in what seems like slow motion, but isn’t) wrapping around objects and people.