Question to the Department for Transport:
To ask the Secretary of State for Transport, what assessment he has made of the potential merits of changing the methodology his Department uses to calculate transport emissions from tailpipe emission to well to wheel to capture the full carbon impact of his Department’s policy decisions.
In 2018, the Department published the outputs of the Transport Energy Model. The model considers greenhouse gas emissions from the production and use (well-to-wheel emissions) of a range of vehicle energy sources, since both are important metrics in assessing transport’s environmental performance. The Department will continue to consider both well-to-wheel and tailpipe emissions as part of our decision making and approach to decarbonisation.