Per passenger mile, a ride on the MBTA here in Boston emits about one quarter of the greenhouse gas emissions of a car ride (and there is basically no emissions cost for adding passengers to a bus or train that is already running).
The more people who travel by bus or train, the better off our environment and society are. Per passenger mile, a ride on the MBTA here in Boston emits about one quarter of the greenhouse gas emissions of a car ride (and there is basically no emissions cost for adding passengers to a bus or train that is already running). Electric trains also don’t emit ground-level pollution that contributes to smog and threatens human health.