The RAC has said there would "negative impact on business efficiency and individual mobility" if a lower speed limit of 60mph was introduced more widely.
While preserving air quality is obviously a paramount concern there will inevitably be a negative impact on business efficiency and individual mobility.
This very powerfully demonstrates the impact that speed has on emissions and many will be surprised to hear that a reduction of just 10mph can have such a significant effect on improving air quality.
Perhaps the Government should be considering reintroduction of incentives to scrap older high polluting vehicles to minimise the need for speed restrictions of the type proposed.
More top news
Gauthier Destenay was part of an official photograph of the spouses of Nato leaders, but went unnamed by the White House in the caption.
It will be cooler in the north with possible outbreaks of thundery rain in Scotland.
Nell Jones' family paid tribute to their daughter, saying how excited she had been to attend her first pop concert.