Haulage

President instructs agencies to deliver tougher fuel efficiency standards for medium and heavy duty trucks

City to roll out 50 zero-emission buses after receiving £1.5m to purchase a further 11 vehicles

System could one day link with traffic lights so lorries could avoid coming to a full stop

Two Chinese-made zero-emission buses go on trial on central routes with more expected in 2016

Supermarket orders 50 Volvo hybrid tractors for its new Avonmouth distribution centre

UK start-up prepares to unveil retrofit technology capable of slashing emissions from old buses by 40 per cent

Liquid nitrogen cooling system developed by Linde promises to cut carbon by 19 per cent

Stagecoach introduces biofuel blend on 10 routes to slash well-to-wheel emissions by 15 per cent

Logistics company now has 101 dual fuel vehicles, making it the largest operator of heavy trucks using the technology in Europe

Norman Baker reveals further winners of Green Bus Fund, as Renault bags £17m to develop low carbon vans