Volkswagen has added provisions of around €2.5bn to the mounting total from its diesel emissions scandal, which has already cost the company around €23bn.

Introducing dried seaweed into a cow’s diet could greatly reduce emission levels.

Pre-tax profits at the Irish arm of troubled car giant Volkswagen last year increased by 14% to €3.6m.

More bad news at VW, where 800,000 new cars are now deemed worth a recall because of failing to hit CO2 limits.