Drivers with long commutes who rarely charge their plug-in hybrid car are likely to emit much more CO₂ than official test figures suggest.

New bike lanes are a good idea for health and air quality, but the convenience of car travel for most journeys will remain.

It seems likely we are going to need radical reductions in future ownership of private vehicles as we transition to cleaner transport.

It seems likely we are going to need radical reductions in future ownership of private vehicles as we transition to cleaner transport.

City streets were built to accommodate cars, but the COVID-19 pandemic has scrambled our transport needs. Many cities are moving to make streets more people-friendly and less car-centric.

Without plastic shielding between seats or more efficient engines, the environmental benefits of public transport are lost.

New research reveals how roads channel microplastics from car tires and brake pads to remote ocean habitats.

The pandemic has forced many people to shift from public transport to car travel. But is this likely to be permanent?

We calculated what would happen if petrol cars were replaced overnight with Teslas and Nissan Leafs.

As lockdowns ease off, there is a danger that the old city traffic jams will soon be back with a vengeance.