John Metcalfe: “Though New York can sometimes seem like a drab warren of chain-link fence and oily pavement, the city actually has an impressive number of trees. On the streets alone—not counting private properties and parks—there were 592,130 at last reckoning, a leafy explosion you can now peruse in this great visualization of tree species. Jill Hubley, a Brooklyn web developer whose last project involved mapping local chemical spills, made the chlorophyllous cartography with data from the 2005-2006 Street Tree Census. Zoomed out, it looks kind of like oodles of stained cells under a microscope..Included is each tree’s identity, whether it be birch, crabapple, or common hornbeam, as well as trunk thickness for all you plant sizeists. So what’s the most tree-jammed borough in this map? Queens snags the crown with more than 40 percent of all street trees, and Brooklyn comes in second with 24 percent. However, Manhattan wins for sheer density, supporting nearly 50 trees for every mile of sidewalk.”