Slow Down Climate Chaos
On motorways, your car will use about 33% less fuel if driven at 60mph instead of 80mph.
In my car, this equates to approximately 10p/mile instead of 15p/mile.
As such, for me, it has been an easy behaviour modification to make.
However, as so many seem unable to do it, I have decided to put this sign in the back window of my car.