Maybe the city is a little bit serious about saving trees after all. Walking down a section of Cali Ave between junctions last night, we noticed two trees in the parking strip by a teardown-to-townhome project at Cali & Spokane — each with a plywood fence around its trunk, each with its trunk marked by a big bright green flyer with this admonition — PROTECT TREE! (I’d like to get a sheaf of those flyers and run around tacking them on just about every tree in sight.)