Environmentalists have told the Scottish Government to replace a fleet of gas guzzling high speed trains which require three times as much energy as a standard diesel train - when it takes over ScotRail in March.

Twenty six refurbished high speed trains (HSTs) - which are diesel-powered and leased from a company in England - have been introduced to ScotRail's services since October 2018. This fulfilled a promise made by the company's operator, Abellio, when it took over Scotland's railways in 2015.
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