Question to the Department for Transport:

To ask the Secretary of State for Transport, what assessment his Department has made of the potential merits of the use of biomethane to replace diesel in the rural haulage sector.

The Low Emission Freight and Logistics Trials funded by the department included emissions testing on a range of dedicated gas heavy goods vehicles and compared emissions to equivalent diesel models. This research estimates the use of biomethane could reduce CO₂ emissions from between 67-85%, however emissions of harmful air pollutant emissions were in some cases higher than the diesel comparators they were tested against.