This report by Professor David Begg and Claire Haigh examines the Government’s plans to tackle poor air quality.
The key conclusion is that while it is essential to clean up diesel vehicles, it is also crucial that congestion and the continual decline in urban traffic speeds across the UK is tackled.
Congestion is not just a drag on the economy, it kills. Halving average city traffic speeds leads to a 50% increase in NOx emissions from larger vehicles.
Image: David Holt