"Exclusive: DfT refuses to publish emission figures, which campaigners say could make new road projects unviable"
"The UK government is refusing to release the carbon emission figures behind its transport decarbonisation plan, which campaigners say could make proposed road schemes financially unviable.
The Department for Transport (DfT) is blocking academics from seeing the figures, which include data on how much car use would have to be reduced in order to reach net zero commitments.
Campaigners say meeting these legally binding targets will be possible only with a drastic reduction in motor traffic, which could make many new road projects financially unviable.
There are 32m cars on the UK’s roads, and they are growing both in number and size. Transport is the country’s largest emitting sector, and produced 24% of the total in 2020."