The reasons for regulating NOx were to prevent acid rain which was destroying forests. Nearly thirty years ago, scientists established that NOx produces Ozone in the atmosphere. Now the health effects of NOx regulation is even more apparent. Ozone levels affect the rate of heart disease.

Meanwhile, at his news conference, he said he is looking forward to campaigning and continuing his work on the bench.

Chelsea top the Premier League by a point from the Gunners, with Manchester City another two points back in third.

It follows comments made by President Hamid Karzai in a BBC interview which criticised the Nato exercise in Afghanistan for causing "a lot of suffering" and making "no gains".

Such is the profile of the modern-day footballer; they have entered the realm of being untouchable. Just ask the courts.