Many streets in my ward are highly residential areas where, unfortunately, a small number of drivers drive TOO FAST.
For safety’s sake, we need 20mph speed limits.
Furthermore: ‘Modal shift’ (to less polluting transport modes: bus, bike, foot) is the key to reducing carbon emissions. Cars driving too fast is the key reason why people do not shift to bike and foot. Ergo: reducing speed limits is the key to reducing carbon emissions.
20mph limits are green.