BostonZest discusses efforts by state and city arborists and local volunteers to protect elm trees on the Commonwealth Avenue mall and along the Esplanade and Charlesgate from the dreaded Dutch Elm Disease:

... When we have a few days of hot weather, the elm bark beetle will come out of hiding and begin spreading the disease. That's when volunteers look to the treetops for signs of distress. "We call it flagging, which is the yellowing of the leaves on a certain section," said Greg Mosman, Boston's city arborist. ...

Many years ago, I had just dropped my girlfriend off at church for Easter services and was heading back to Brighton when some jerk from New Hampshire plowed through a red light at Charlesgate and ran right into the front of my beloved Chevy Nova. Mats Tolander provides the latest proof that that whole interchange is just evil - photos of a two-car smashup this morning around 6:40.

Mats Tolander seems to be making a hobby of photographing the aftermath of accidents at Charlesgate and Comm. Ave. Of which there are apparently many from which to choose.