It’s time for full transparency about petrol

[image error]

In 2015 I wrote about a scheme in Canada to add warning labels to petrol pumps gas pumps, for my American friends. The labels were inspired by the warning labels on cigarette packets, with wording that highlighted the climate impact of the fuel. Its an interesting idea, connecting peoples ordinary actions with their global consequences, though for a while it didnt look like it was going to get much further than certain regions of Canada.

That changed this year, when Cambridge,...