Tyre Extinguishers demonstration is held.

Carried out by an international group of climate activists by that name, it involves the overnight deflating of tires on more than luxury 40 SUVs (none of them electric vehicles) parked on Mount Vernon Street and other nearby streets. It is the first such action in Boston by the group, which claims to have deflated the tires on more than 10,000 cars, mostly in Europe.